1RG(1) RG(1)
2
6 rg - recursively search the current directory for lines matching a
7 pattern
8
10 rg [OPTIONS] PATTERN [PATH...]
11 rg [OPTIONS] -e PATTERN... [PATH...]
13 rg [OPTIONS] -f PATTERNFILE... [PATH...]
15 rg [OPTIONS] --files [PATH...]
17 rg [OPTIONS] --type-list
19 command | rg [OPTIONS] PATTERN
21 rg [OPTIONS] --help
23 rg [OPTIONS] --version
25
27 ripgrep (rg) recursively searches the current directory for a regex
28 pattern. By default, ripgrep will respect your .gitignore and
29 automatically skip hidden files/directories and binary files.
30 ripgrep’s default regex engine uses finite automata and guarantees
32 linear time searching. Because of this, features like backreferences
33 and arbitrary look-around are not supported. However, if ripgrep is
34 built with PCRE2, then the --pcre2 flag can be used to enable
35 backreferences and look-around.
36 ripgrep supports configuration files. Set RIPGREP_CONFIG_PATH to a
38 configuration file. The file can specify one shell argument per line.
39 Lines starting with # are ignored. For more details, see the man page
40 or the README.
41 ripgrep will automatically detect if stdin exists and search stdin for
43 a regex pattern, e.g. ls | rg foo. In some environments, stdin may
44 exist when it shouldn’t. To turn off stdin detection explicitly specify
45 the directory to search, e.g. rg foo ./.
46 Tip: to disable all smart filtering and make ripgrep behave a bit more
48 like classical grep, use rg -uuu.
49
51 ripgrep uses Rust’s regex engine by default, which documents its
52 syntax: https://docs.rs/regex/*/regex/#syntax
53 ripgrep uses byte-oriented regexes, which has some additional
55 documentation: https://docs.rs/regex/*/regex/bytes/index.html#syntax
56 To a first approximation, ripgrep uses Perl-like regexes without
58 look-around or backreferences. This makes them very similar to the
59 "extended" (ERE) regular expressions supported by egrep, but with a few
60 additional features like Unicode character classes.
61 If you’re using ripgrep with the --pcre2 flag, then please consult
63 https://www.pcre.org or the PCRE2 man pages for documentation on the
64 supported syntax.
65
67 PATTERN
68 A regular expression used for searching. To match a pattern
69 beginning with a dash, use the -e/--regexp option.
70 PATH
72 A file or directory to search. Directories are searched
73 recursively. File paths specified explicitly on the command line
74 override glob and ignore rules.
75
77 Note that many options can be disabled via flags. In some cases, those
78 flags are not listed in a first class way below. For example, the
79 --column flag (listed below) enables column numbers in ripgrep’s
80 output, but the --no-column flag (not listed below) disables them. The
81 reverse can also exist. For example, the --no-ignore flag (listed
82 below) disables ripgrep’s gitignore logic, but the --ignore flag (not
83 listed below) enables it. These flags are useful for overriding a
84 ripgrep configuration file on the command line. Each flag’s
85 documentation notes whether an inverted flag exists. In all cases, the
86 flag specified last takes precedence.
87 -A, --after-context NUM
89 Show NUM lines after each match.
90 This overrides the --context and --passthru flags.
92 --auto-hybrid-regex
94 DEPRECATED. Use --engine instead.
95 When this flag is used, ripgrep will dynamically choose between
97 supported regex engines depending on the features used in a
98 pattern. When ripgrep chooses a regex engine, it applies that
99 choice for every regex provided to ripgrep (e.g., via multiple
100 -e/--regexp or -f/--file flags).
101 As an example of how this flag might behave, ripgrep will attempt
103 to use its default finite automata based regex engine whenever the
104 pattern can be successfully compiled with that regex engine. If
105 PCRE2 is enabled and if the pattern given could not be compiled
106 with the default regex engine, then PCRE2 will be automatically
107 used for searching. If PCRE2 isn’t available, then this flag has no
108 effect because there is only one regex engine to choose from.
109 In the future, ripgrep may adjust its heuristics for how it decides
111 which regex engine to use. In general, the heuristics will be
112 limited to a static analysis of the patterns, and not to any
113 specific runtime behavior observed while searching files.
114 The primary downside of using this flag is that it may not always
116 be obvious which regex engine ripgrep uses, and thus, the match
117 semantics or performance profile of ripgrep may subtly and
118 unexpectedly change. However, in many cases, all regex engines will
119 agree on what constitutes a match and it can be nice to
120 transparently support more advanced regex features like look-around
121 and backreferences without explicitly needing to enable them.
122 This flag can be disabled with --no-auto-hybrid-regex.
124 -B, --before-context NUM
126 Show NUM lines before each match.
127 This overrides the --context and --passthru flags.
129 --binary
131 Enabling this flag will cause ripgrep to search binary files. By
132 default, ripgrep attempts to automatically skip binary files in
133 order to improve the relevance of results and make the search
134 faster.
135 Binary files are heuristically detected based on whether they
137 contain a NUL byte or not. By default (without this flag set), once
138 a NUL byte is seen, ripgrep will stop searching the file. Usually,
139 NUL bytes occur in the beginning of most binary files. If a NUL
140 byte occurs after a match, then ripgrep will still stop searching
141 the rest of the file, but a warning will be printed.
142 In contrast, when this flag is provided, ripgrep will continue
144 searching a file even if a NUL byte is found. In particular, if a
145 NUL byte is found then ripgrep will continue searching until either
146 a match is found or the end of the file is reached, whichever comes
147 sooner. If a match is found, then ripgrep will stop and print a
148 warning saying that the search stopped prematurely.
149 If you want ripgrep to search a file without any special NUL byte
151 handling at all (and potentially print binary data to stdout), then
152 you should use the -a/--text flag.
153 The --binary flag is a flag for controlling ripgrep’s automatic
155 filtering mechanism. As such, it does not need to be used when
156 searching a file explicitly or when searching stdin. That is, it is
157 only applicable when recursively searching a directory.
158 Note that when the -u/--unrestricted flag is provided for a third
160 time, then this flag is automatically enabled.
161 This flag can be disabled with --no-binary. It overrides the
163 -a/--text flag.
164 --block-buffered
166 When enabled, ripgrep will use block buffering. That is, whenever a
167 matching line is found, it will be written to an in-memory buffer
168 and will not be written to stdout until the buffer reaches a
169 certain size. This is the default when ripgrep’s stdout is
170 redirected to a pipeline or a file. When ripgrep’s stdout is
171 connected to a terminal, line buffering will be used. Forcing block
172 buffering can be useful when dumping a large amount of contents to
173 a terminal.
174 Forceful block buffering can be disabled with --no-block-buffered.
176 Note that using --no-block-buffered causes ripgrep to revert to its
177 default behavior of automatically detecting the buffering strategy.
178 To force line buffering, use the --line-buffered flag.
179 -b, --byte-offset
181 Print the 0-based byte offset within the input file before each
182 line of output. If -o (--only-matching) is specified, print the
183 offset of the matching part itself.
184 If ripgrep does transcoding, then the byte offset is in terms of
186 the the result of transcoding and not the original data. This
187 applies similarly to another transformation on the source, such as
188 decompression or a --pre filter. Note that when the PCRE2 regex
189 engine is used, then UTF-8 transcoding is done by default.
190 -s, --case-sensitive
192 Search case sensitively.
193 This overrides the -i/--ignore-case and -S/--smart-case flags.
195 --color WHEN
197 This flag controls when to use colors. The default setting is auto,
198 which means ripgrep will try to guess when to use colors. For
199 example, if ripgrep is printing to a terminal, then it will use
200 colors, but if it is redirected to a file or a pipe, then it will
201 suppress color output. ripgrep will suppress color output in some
202 other circumstances as well. For example, if the TERM environment
203 variable is not set or set to dumb, then ripgrep will not use
204 colors.
205 The possible values for this flag are:
207 never Colors will never be used.
209 auto The default. ripgrep tries to be smart.
210 always Colors will always be used regardless of where output is sent.
211 ansi Like 'always', but emits ANSI escapes (even in a Windows console).
212 When the --vimgrep flag is given to ripgrep, then the default value
214 for the --color flag changes to never.
215 --colors COLOR_SPEC ...
217 This flag specifies color settings for use in the output. This flag
218 may be provided multiple times. Settings are applied iteratively.
219 Colors are limited to one of eight choices: red, blue, green, cyan,
220 magenta, yellow, white and black. Styles are limited to nobold,
221 bold, nointense, intense, nounderline or underline.
222 The format of the flag is {type}:{attribute}:{value}. {type} should
224 be one of path, line, column or match. {attribute} can be fg, bg or
225 style. {value} is either a color (for fg and bg) or a text style. A
226 special format, {type}:none, will clear all color settings for
227 {type}.
228 For example, the following command will change the match color to
230 magenta and the background color for line numbers to yellow:
231 rg --colors 'match:fg:magenta' --colors 'line:bg:yellow' foo.
233 Extended colors can be used for {value} when the terminal supports
235 ANSI color sequences. These are specified as either x (256-color)
236 or x,x,x (24-bit truecolor) where x is a number between 0 and 255
237 inclusive. x may be given as a normal decimal number or a
238 hexadecimal number, which is prefixed by 0x.
239 For example, the following command will change the match background
241 color to that represented by the rgb value (0,128,255):
242 rg --colors 'match:bg:0,128,255'
244 or, equivalently,
246 rg --colors 'match:bg:0x0,0x80,0xFF'
248 Note that the the intense and nointense style flags will have no
250 effect when used alongside these extended color codes.
251 --column
253 Show column numbers (1-based). This only shows the column numbers
254 for the first match on each line. This does not try to account for
255 Unicode. One byte is equal to one column. This implies
256 --line-number.
257 This flag can be disabled with --no-column.
259 -C, --context NUM
261 Show NUM lines before and after each match. This is equivalent to
262 providing both the -B/--before-context and -A/--after-context flags
263 with the same value.
264 This overrides both the -B/--before-context and -A/--after-context
266 flags, in addition to the --passthru flag.
267 --context-separator SEPARATOR
269 The string used to separate non-contiguous context lines in the
270 output. This is only used when one of the context flags is used
271 (-A, -B or -C). Escape sequences like \x7F or \t may be used. The
272 default value is --.
273 When the context separator is set to an empty string, then a line
275 break is still inserted. To completely disable context separators,
276 use the --no-context-separator flag.
277 -c, --count
279 This flag suppresses normal output and shows the number of lines
280 that match the given patterns for each file searched. Each file
281 containing a match has its path and count printed on each line.
282 Note that this reports the number of lines that match and not the
283 total number of matches, unless -U/--multiline is enabled. In
284 multiline mode, --count is equivalent to --count-matches.
285 If only one file is given to ripgrep, then only the count is
287 printed if there is a match. The --with-filename flag can be used
288 to force printing the file path in this case. If you need a count
289 to be printed regardless of whether there is a match, then use
290 --include-zero.
291 This overrides the --count-matches flag. Note that when --count is
293 combined with --only-matching, then ripgrep behaves as if
294 --count-matches was given.
295 --count-matches
297 This flag suppresses normal output and shows the number of
298 individual matches of the given patterns for each file searched.
299 Each file containing matches has its path and match count printed
300 on each line. Note that this reports the total number of individual
301 matches and not the number of lines that match.
302 If only one file is given to ripgrep, then only the count is
304 printed if there is a match. The --with-filename flag can be used
305 to force printing the file path in this case.
306 This overrides the --count flag. Note that when --count is combined
308 with --only-matching, then ripgrep behaves as if --count-matches
309 was given.
310 --crlf
312 When enabled, ripgrep will treat CRLF (\r\n) as a line terminator
313 instead of just \n.
314 Principally, this permits $ in regex patterns to match just before
316 CRLF instead of just before LF. The underlying regex engine may not
317 support this natively, so ripgrep will translate all instances of $
318 to (?:\r??$). This may produce slightly different than desired
319 match offsets. It is intended as a work-around until the regex
320 engine supports this natively.
321 CRLF support can be disabled with --no-crlf.
323 --debug
325 Show debug messages. Please use this when filing a bug report.
326 The --debug flag is generally useful for figuring out why ripgrep
328 skipped searching a particular file. The debug messages should
329 mention all files skipped and why they were skipped.
330 To get even more debug output, use the --trace flag, which implies
332 --debug along with additional trace data. With --trace, the output
333 could be quite large and is generally more useful for development.
334 --dfa-size-limit NUM+SUFFIX?
336 The upper size limit of the regex DFA. The default limit is 10M.
337 This should only be changed on very large regex inputs where the
338 (slower) fallback regex engine may otherwise be used if the limit
339 is reached.
340 The argument accepts the same size suffixes as allowed in with the
342 --max-filesize flag.
343 -E, --encoding ENCODING
345 Specify the text encoding that ripgrep will use on all files
346 searched. The default value is auto, which will cause ripgrep to do
347 a best effort automatic detection of encoding on a per-file basis.
348 Automatic detection in this case only applies to files that begin
349 with a UTF-8 or UTF-16 byte-order mark (BOM). No other automatic
350 detection is performed. One can also specify none which will then
351 completely disable BOM sniffing and always result in searching the
352 raw bytes, including a BOM if it’s present, regardless of its
353 encoding.
354 Other supported values can be found in the list of labels here:
356 https://encoding.spec.whatwg.org/#concept-encoding-get
357 For more details on encoding and how ripgrep deals with it, see
359 GUIDE.md.
360 This flag can be disabled with --no-encoding.
362 --engine ENGINE
364 Specify which regular expression engine to use. When you choose a
365 regex engine, it applies that choice for every regex provided to
366 ripgrep (e.g., via multiple -e/--regexp or -f/--file flags).
367 Accepted values are default, pcre2, or auto.
369 The default value is default, which is the fastest and should be
371 good for most use cases. The pcre2 engine is generally useful when
372 you want to use features such as look-around or backreferences.
373 auto will dynamically choose between supported regex engines
374 depending on the features used in a pattern on a best effort basis.
375 Note that the pcre2 engine is an optional ripgrep feature. If PCRE2
377 wasn’t included in your build of ripgrep, then using this flag will
378 result in ripgrep printing an error message and exiting.
379 This overrides previous uses of --pcre2 and --auto-hybrid-regex
381 flags.
382 --field-context-separator SEPARATOR
384 Set the field context separator, which is used to delimit file
385 paths, line numbers, columns and the context itself, when printing
386 contextual lines. The separator may be any number of bytes,
387 including zero. Escape sequences like \x7F or \t may be used. The
388 default value is -.
389 --field-match-separator SEPARATOR
391 Set the field match separator, which is used to delimit file paths,
392 line numbers, columns and the match itself. The separator may be
393 any number of bytes, including zero. Escape sequences like \x7F or
394 \t may be used. The default value is -.
395 -f, --file PATTERNFILE ...
397 Search for patterns from the given file, with one pattern per line.
398 When this flag is used multiple times or in combination with the
399 -e/--regexp flag, then all patterns provided are searched. Empty
400 pattern lines will match all input lines, and the newline is not
401 counted as part of the pattern.
402 A line is printed if and only if it matches at least one of the
404 patterns.
405 --files
407 Print each file that would be searched without actually performing
408 the search. This is useful to determine whether a particular file
409 is being searched or not.
410 -l, --files-with-matches
412 Print the paths with at least one match and suppress match
413 contents.
414 This overrides --files-without-match.
416 --files-without-match
418 Print the paths that contain zero matches and suppress match
419 contents. This inverts/negates the --files-with-matches flag.
420 This overrides --files-with-matches.
422 -F, --fixed-strings
424 Treat the pattern as a literal string instead of a regular
425 expression. When this flag is used, special regular expression meta
426 characters such as .(){}*+ do not need to be escaped.
427 This flag can be disabled with --no-fixed-strings.
429 -L, --follow
431 When this flag is enabled, ripgrep will follow symbolic links while
432 traversing directories. This is disabled by default. Note that
433 ripgrep will check for symbolic link loops and report errors if it
434 finds one.
435 This flag can be disabled with --no-follow.
437 -g, --glob GLOB ...
439 Include or exclude files and directories for searching that match
440 the given glob. This always overrides any other ignore logic.
441 Multiple glob flags may be used. Globbing rules match .gitignore
442 globs. Precede a glob with a ! to exclude it. If multiple globs
443 match a file or directory, the glob given later in the command line
444 takes precedence.
445 As an extension, globs support specifying alternatives: -g ab{c,d}
447 is equivalet to -g abc -g abd. Empty alternatives like -g ab{,c}
448 are not currently supported. Note that this syntax extension is
449 also currently enabled in gitignore files, even though this syntax
450 isn’t supported by git itself. ripgrep may disable this syntax
451 extension in gitignore files, but it will always remain available
452 via the -g/--glob flag.
453 When this flag is set, every file and directory is applied to it to
455 test for a match. So for example, if you only want to search in a
456 particular directory foo, then -g foo is incorrect because foo/bar
457 does not match the glob foo. Instead, you should use -g 'foo/**'.
458 --glob-case-insensitive
460 Process glob patterns given with the -g/--glob flag case
461 insensitively. This effectively treats --glob as --iglob.
462 This flag can be disabled with the --no-glob-case-insensitive flag.
464 --heading
466 This flag prints the file path above clusters of matches from each
467 file instead of printing the file path as a prefix for each matched
468 line. This is the default mode when printing to a terminal.
469 This overrides the --no-heading flag.
471 -., --hidden
473 Search hidden files and directories. By default, hidden files and
474 directories are skipped. Note that if a hidden file or a directory
475 is whitelisted in an ignore file, then it will be searched even if
476 this flag isn’t provided.
477 A file or directory is considered hidden if its base name starts
479 with a dot character (.). On operating systems which support a
480 hidden file attribute, like Windows, files with this attribute are
481 also considered hidden.
482 This flag can be disabled with --no-hidden.
484 --iglob GLOB ...
486 Include or exclude files and directories for searching that match
487 the given glob. This always overrides any other ignore logic.
488 Multiple glob flags may be used. Globbing rules match .gitignore
489 globs. Precede a glob with a ! to exclude it. Globs are matched
490 case insensitively.
491 -i, --ignore-case
493 When this flag is provided, the given patterns will be searched
494 case insensitively. The case insensitivity rules used by ripgrep
495 conform to Unicode’s "simple" case folding rules.
496 This flag overrides -s/--case-sensitive and -S/--smart-case.
498 --ignore-file PATH ...
500 Specifies a path to one or more .gitignore format rules files.
501 These patterns are applied after the patterns found in .gitignore
502 and .ignore are applied and are matched relative to the current
503 working directory. Multiple additional ignore files can be
504 specified by using the --ignore-file flag several times. When
505 specifying multiple ignore files, earlier files have lower
506 precedence than later files.
507 If you are looking for a way to include or exclude files and
509 directories directly on the command line, then used -g instead.
510 --ignore-file-case-insensitive
512 Process ignore files (.gitignore, .ignore, etc.) case
513 insensitively. Note that this comes with a performance penalty and
514 is most useful on case insensitive file systems (such as Windows).
515 This flag can be disabled with the
517 --no-ignore-file-case-insensitive flag.
518 --include-zero
520 When used with --count or --count-matches, print the number of
521 matches for each file even if there were zero matches. This is
522 disabled by default but can be enabled to make ripgrep behave more
523 like grep.
524 -v, --invert-match
526 Invert matching. Show lines that do not match the given patterns.
527 --json
529 Enable printing results in a JSON Lines format.
530 When this flag is provided, ripgrep will emit a sequence of
532 messages, each encoded as a JSON object, where there are five
533 different message types:
534 begin - A message that indicates a file is being searched and
536 contains at least one match.
537 end - A message the indicates a file is done being searched. This
539 message also include summary statistics about the search for a
540 particular file.
541 match - A message that indicates a match was found. This includes
543 the text and offsets of the match.
544 context - A message that indicates a contextual line was found.
546 This includes the text of the line, along with any match
547 information if the search was inverted.
548 summary - The final message emitted by ripgrep that contains
550 summary statistics about the search across all files.
551 Since file paths or the contents of files are not guaranteed to be
553 valid UTF-8 and JSON itself must be representable by a Unicode
554 encoding, ripgrep will emit all data elements as objects with one
555 of two keys: text or bytes. text is a normal JSON string when the
556 data is valid UTF-8 while bytes is the base64 encoded contents of
557 the data.
558 The JSON Lines format is only supported for showing search results.
560 It cannot be used with other flags that emit other types of output,
561 such as --files, --files-with-matches, --files-without-match,
562 --count or --count-matches. ripgrep will report an error if any of
563 the aforementioned flags are used in concert with --json.
564 Other flags that control aspects of the standard output such as
566 --only-matching, --heading, --replace, --max-columns, etc., have no
567 effect when --json is set.
568 A more complete description of the JSON format used can be found
570 here: https://docs.rs/grep-printer/*/grep_printer/struct.JSON.html
571 The JSON Lines format can be disabled with --no-json.
573 --line-buffered
575 When enabled, ripgrep will use line buffering. That is, whenever a
576 matching line is found, it will be flushed to stdout immediately.
577 This is the default when ripgrep’s stdout is connected to a
578 terminal, but otherwise, ripgrep will use block buffering, which is
579 typically faster. This flag forces ripgrep to use line buffering
580 even if it would otherwise use block buffering. This is typically
581 useful in shell pipelines, e.g., tail -f something.log | rg foo
582 --line-buffered | rg bar.
583 Forceful line buffering can be disabled with --no-line-buffered.
585 Note that using --no-line-buffered causes ripgrep to revert to its
586 default behavior of automatically detecting the buffering strategy.
587 To force block buffering, use the --block-buffered flag.
588 -n, --line-number
590 Show line numbers (1-based). This is enabled by default when
591 searching in a terminal.
592 -x, --line-regexp
594 Only show matches surrounded by line boundaries. This is equivalent
595 to putting ^...$ around all of the search patterns. In other words,
596 this only prints lines where the entire line participates in a
597 match.
598 This overrides the --word-regexp flag.
600 -M, --max-columns NUM
602 Don’t print lines longer than this limit in bytes. Longer lines are
603 omitted, and only the number of matches in that line is printed.
604 When this flag is omitted or is set to 0, then it has no effect.
606 --max-columns-preview
608 When the --max-columns flag is used, ripgrep will by default
609 completely replace any line that is too long with a message
610 indicating that a matching line was removed. When this flag is
611 combined with --max-columns, a preview of the line (corresponding
612 to the limit size) is shown instead, where the part of the line
613 exceeding the limit is not shown.
614 If the --max-columns flag is not set, then this has no effect.
616 This flag can be disabled with --no-max-columns-preview.
618 -m, --max-count NUM
620 Limit the number of matching lines per file searched to NUM.
621 --max-depth NUM
623 Limit the depth of directory traversal to NUM levels beyond the
624 paths given. A value of zero only searches the explicitly given
625 paths themselves.
626 For example, rg --max-depth 0 dir/ is a no-op because dir/ will not
628 be descended into. rg --max-depth 1 dir/ will search only the
629 direct children of dir.
630 --max-filesize NUM+SUFFIX?
632 Ignore files larger than NUM in size. This does not apply to
633 directories.
634 The input format accepts suffixes of K, M or G which correspond to
636 kilobytes, megabytes and gigabytes, respectively. If no suffix is
637 provided the input is treated as bytes.
638 Examples: --max-filesize 50K or --max-filesize 80M
640 --mmap
642 Search using memory maps when possible. This is enabled by default
643 when ripgrep thinks it will be faster.
644 Memory map searching doesn’t currently support all options, so if
646 an incompatible option (e.g., --context) is given with --mmap, then
647 memory maps will not be used.
648 Note that ripgrep may abort unexpectedly when --mmap if it searches
650 a file that is simultaneously truncated.
651 This flag overrides --no-mmap.
653 -U, --multiline
655 Enable matching across multiple lines.
656 When multiline mode is enabled, ripgrep will lift the restriction
658 that a match cannot include a line terminator. For example, when
659 multiline mode is not enabled (the default), then the regex \p{any}
660 will match any Unicode codepoint other than \n. Similarly, the
661 regex \n is explicitly forbidden, and if you try to use it, ripgrep
662 will return an error. However, when multiline mode is enabled,
663 \p{any} will match any Unicode codepoint, including \n, and regexes
664 like \n are permitted.
665 An important caveat is that multiline mode does not change the
667 match semantics of .. Namely, in most regex matchers, a . will by
668 default match any character other than \n, and this is true in
669 ripgrep as well. In order to make . match \n, you must enable the
670 "dot all" flag inside the regex. For example, both (?s). and (?s:.)
671 have the same semantics, where . will match any character,
672 including \n. Alternatively, the --multiline-dotall flag may be
673 passed to make the "dot all" behavior the default. This flag only
674 applies when multiline search is enabled.
675 There is no limit on the number of the lines that a single match
677 can span.
678 WARNING: Because of how the underlying regex engine works,
680 multiline searches may be slower than normal line-oriented
681 searches, and they may also use more memory. In particular, when
682 multiline mode is enabled, ripgrep requires that each file it
683 searches is laid out contiguously in memory (either by reading it
684 onto the heap or by memory-mapping it). Things that cannot be
685 memory-mapped (such as stdin) will be consumed until EOF before
686 searching can begin. In general, ripgrep will only do these things
687 when necessary. Specifically, if the --multiline flag is provided
688 but the regex does not contain patterns that would match \n
689 characters, then ripgrep will automatically avoid reading each file
690 into memory before searching it. Nevertheless, if you only care
691 about matches spanning at most one line, then it is always better
692 to disable multiline mode.
693 This flag can be disabled with --no-multiline.
695 --multiline-dotall
697 This flag enables "dot all" in your regex pattern, which causes .
698 to match newlines when multiline searching is enabled. This flag
699 has no effect if multiline searching isn’t enabled with the
700 --multiline flag.
701 Normally, a . will match any character except newlines. While this
703 behavior typically isn’t relevant for line-oriented matching (since
704 matches can span at most one line), this can be useful when
705 searching with the -U/--multiline flag. By default, the multiline
706 mode runs without this flag.
707 This flag is generally intended to be used in an alias or your
709 ripgrep config file if you prefer "dot all" semantics by default.
710 Note that regardless of whether this flag is used, "dot all"
711 semantics can still be controlled via inline flags in the regex
712 pattern itself, e.g., (?s:.) always enables "dot all" whereas
713 (?-s:.) always disables "dot all".
714 This flag can be disabled with --no-multiline-dotall.
716 --no-config
718 Never read configuration files. When this flag is present, ripgrep
719 will not respect the RIPGREP_CONFIG_PATH environment variable.
720 If ripgrep ever grows a feature to automatically read configuration
722 files in pre-defined locations, then this flag will also disable
723 that behavior as well.
724 -I, --no-filename
726 Never print the file path with the matched lines. This is the
727 default when ripgrep is explicitly instructed to search one file or
728 stdin.
729 This flag overrides --with-filename.
731 --no-heading
733 Don’t group matches by each file. If --no-heading is provided in
734 addition to the -H/--with-filename flag, then file paths will be
735 printed as a prefix for every matched line. This is the default
736 mode when not printing to a terminal.
737 This overrides the --heading flag.
739 --no-ignore
741 Don’t respect ignore files (.gitignore, .ignore, etc.). This
742 implies --no-ignore-dot, --no-ignore-exclude, --no-ignore-global,
743 no-ignore-parent and --no-ignore-vcs.
744 This does not imply --no-ignore-files, since --ignore-file is
746 specified explicitly as a command line argument.
747 When given only once, the -u flag is identical in behavior to
749 --no-ignore and can be considered an alias. However, subsequent -u
750 flags have additional effects; see --unrestricted.
751 This flag can be disabled with the --ignore flag.
753 --no-ignore-dot
755 Don’t respect .ignore files.
756 This does not affect whether ripgrep will ignore files and
758 directories whose names begin with a dot. For that, see the
759 -./--hidden flag.
760 This flag can be disabled with the --ignore-dot flag.
762 --no-ignore-exclude
764 Don’t respect ignore files that are manually configured for the
765 repository such as git’s .git/info/exclude.
766 This flag can be disabled with the --ignore-exclude flag.
768 --no-ignore-files
770 When set, any --ignore-file flags, even ones that come after this
771 flag, are ignored.
772 This flag can be disabled with the --ignore-files flag.
774 --no-ignore-global
776 Don’t respect ignore files that come from "global" sources such as
777 git’s core.excludesFile configuration option (which defaults to
778 $HOME/.config/git/ignore).
779 This flag can be disabled with the --ignore-global flag.
781 --no-ignore-messages
783 Suppresses all error messages related to parsing ignore files such
784 as .ignore or .gitignore.
785 This flag can be disabled with the --ignore-messages flag.
787 --no-ignore-parent
789 Don’t respect ignore files (.gitignore, .ignore, etc.) in parent
790 directories.
791 This flag can be disabled with the --ignore-parent flag.
793 --no-ignore-vcs
795 Don’t respect version control ignore files (.gitignore, etc.). This
796 implies --no-ignore-parent for VCS files. Note that .ignore files
797 will continue to be respected.
798 This flag can be disabled with the --ignore-vcs flag.
800 -N, --no-line-number
802 Suppress line numbers. This is enabled by default when not
803 searching in a terminal.
804 --no-messages
806 Suppress all error messages related to opening and reading files.
807 Error messages related to the syntax of the pattern given are still
808 shown.
809 This flag can be disabled with the --messages flag.
811 --no-mmap
813 Never use memory maps, even when they might be faster.
814 This flag overrides --mmap.
816 --no-pcre2-unicode
818 DEPRECATED. Use --no-unicode instead.
819 This flag is now an alias for --no-unicode. And --pcre2-unicode is
821 an alias for --unicode.
822 --no-require-git
824 By default, ripgrep will only respect global gitignore rules,
825 .gitignore rules and local exclude rules if ripgrep detects that
826 you are searching inside a git repository. This flag allows you to
827 relax this restriction such that ripgrep will respect all git
828 related ignore rules regardless of whether you’re searching in a
829 git repository or not.
830 This flag can be disabled with --require-git.
832 --no-unicode
834 By default, ripgrep will enable "Unicode mode" in all of its
835 regexes. This has a number of consequences:
836 • . will only match valid UTF-8 encoded scalar values.
838 • Classes like \w, \s, \d are all Unicode aware and much bigger
840 than their ASCII only versions.
841 • Case insensitive matching will use Unicode case folding.
843 • A large array of classes like \p{Emoji} are available.
845 • Word boundaries (\b and \B) use the Unicode definition of a
847 word character.
848 In some cases it can be desirable to turn these things off. The
850 --no-unicode flag will do exactly that.
851 For PCRE2 specifically, Unicode mode represents a critical
853 trade off in the user experience of ripgrep. In particular,
854 unlike the default regex engine, PCRE2 does not support the
855 ability to search possibly invalid UTF-8 with Unicode features
856 enabled. Instead, PCRE2 requires that everything it searches
857 when Unicode mode is enabled is valid UTF-8. (Or valid
858 UTF-16/UTF-32, but for the purposes of ripgrep, we only discuss
859 UTF-8.) This means that if you have PCRE2’s Unicode mode
860 enabled and you attempt to search invalid UTF-8, then the
861 search for that file will halt and print an error. For this
862 reason, when PCRE2’s Unicode mode is enabled, ripgrep will
863 automatically "fix" invalid UTF-8 sequences by replacing them
864 with the Unicode replacement codepoint. This penalty does not
865 occur when using the default regex engine.
866 If you would rather see the encoding errors surfaced by PCRE2
868 when Unicode mode is enabled, then pass the --no-encoding flag
869 to disable all transcoding.
870 The --no-unicode flag can be disabled with --unicode. Note that
872 --no-pcre2-unicode and --pcre2-unicode are aliases for
873 --no-unicode and --unicode, respectively.
874 -0, --null
876 Whenever a file path is printed, follow it with a NUL byte. This
877 includes printing file paths before matches, and when printing a
878 list of matching files such as with --count, --files-with-matches
879 and --files. This option is useful for use with xargs.
880 --null-data
882 Enabling this option causes ripgrep to use NUL as a line terminator
883 instead of the default of \n.
884 This is useful when searching large binary files that would
886 otherwise have very long lines if \n were used as the line
887 terminator. In particular, ripgrep requires that, at a minimum,
888 each line must fit into memory. Using NUL instead can be a useful
889 stopgap to keep memory requirements low and avoid OOM (out of
890 memory) conditions.
891 This is also useful for processing NUL delimited data, such as that
893 emitted when using ripgrep’s -0/--null flag or find’s --print0
894 flag.
895 Using this flag implies -a/--text.
897 --one-file-system
899 When enabled, ripgrep will not cross file system boundaries
900 relative to where the search started from.
901 Note that this applies to each path argument given to ripgrep. For
903 example, in the command rg --one-file-system /foo/bar /quux/baz,
904 ripgrep will search both /foo/bar and /quux/baz even if they are on
905 different file systems, but will not cross a file system boundary
906 when traversing each path’s directory tree.
907 This is similar to find’s -xdev or -mount flag.
909 This flag can be disabled with --no-one-file-system.
911 -o, --only-matching
913 Print only the matched (non-empty) parts of a matching line, with
914 each such part on a separate output line.
915 --passthru
917 Print both matching and non-matching lines.
918 Another way to achieve a similar effect is by modifying your
920 pattern to match the empty string. For example, if you are
921 searching using rg foo then using rg "^|foo" instead will emit
922 every line in every file searched, but only occurrences of foo will
923 be highlighted. This flag enables the same behavior without needing
924 to modify the pattern.
925 This overrides the --context, --after-context and --before-context
927 flags.
928 --path-separator SEPARATOR
930 Set the path separator to use when printing file paths. This
931 defaults to your platform’s path separator, which is / on Unix and
932 \ on Windows. This flag is intended for overriding the default when
933 the environment demands it (e.g., cygwin). A path separator is
934 limited to a single byte.
935 -P, --pcre2
937 When this flag is present, ripgrep will use the PCRE2 regex engine
938 instead of its default regex engine.
939 This is generally useful when you want to use features such as
941 look-around or backreferences.
942 Note that PCRE2 is an optional ripgrep feature. If PCRE2 wasn’t
944 included in your build of ripgrep, then using this flag will result
945 in ripgrep printing an error message and exiting. PCRE2 may also
946 have worse user experience in some cases, since it has fewer
947 introspection APIs than ripgrep’s default regex engine. For
948 example, if you use a \n in a PCRE2 regex without the
949 -U/--multiline flag, then ripgrep will silently fail to match
950 anything instead of reporting an error immediately (like it does
951 with the default regex engine).
952 Related flags: --no-pcre2-unicode
954 This flag can be disabled with --no-pcre2.
956 --pcre2-version
958 When this flag is present, ripgrep will print the version of PCRE2
959 in use, along with other information, and then exit. If PCRE2 is
960 not available, then ripgrep will print an error message and exit
961 with an error code.
962 --pre COMMAND
964 For each input FILE, search the standard output of COMMAND FILE
965 rather than the contents of FILE. This option expects the COMMAND
966 program to either be an absolute path or to be available in your
967 PATH. Either an empty string COMMAND or the --no-pre flag will
968 disable this behavior.
969 WARNING: When this flag is set, ripgrep will unconditionally spawn a
971 process for every file that is searched. Therefore, this can incur an
972 unnecessarily large performance penalty if you don't otherwise need the
973 flexibility offered by this flag. One possible mitigation to this is to use
974 the '--pre-glob' flag to limit which files a preprocessor is run with.
975 A preprocessor is not run when ripgrep is searching stdin.
977 When searching over sets of files that may require one of several
979 decoders as preprocessors, COMMAND should be a wrapper program or
980 script which first classifies FILE based on magic numbers/content
981 or based on the FILE name and then dispatches to an appropriate
982 preprocessor. Each COMMAND also has its standard input connected to
983 FILE for convenience.
984 For example, a shell script for COMMAND might look like:
986 case "$1" in
988 *.pdf)
989 exec pdftotext "$1" -
990 ;;
991 *)
992 case $(file "$1") in
993 *Zstandard*)
994 exec pzstd -cdq
995 ;;
996 *)
997 exec cat
998 ;;
999 esac
1000 ;;
1001 esac
1002 The above script uses pdftotext to convert a PDF file to plain
1004 text. For all other files, the script uses the file utility to
1005 sniff the type of the file based on its contents. If it is a
1006 compressed file in the Zstandard format, then pzstd is used to
1007 decompress the contents to stdout.
1008 This overrides the -z/--search-zip flag.
1010 --pre-glob GLOB ...
1012 This flag works in conjunction with the --pre flag. Namely, when
1013 one or more --pre-glob flags are given, then only files that match
1014 the given set of globs will be handed to the command specified by
1015 the --pre flag. Any non-matching files will be searched without
1016 using the preprocessor command.
1017 This flag is useful when searching many files with the --pre flag.
1019 Namely, it permits the ability to avoid process overhead for files
1020 that don’t need preprocessing. For example, given the following
1021 shell script, pre-pdftotext:
1022 #!/bin/sh
1024 pdftotext "$1" -
1026 then it is possible to use --pre pre-pdftotext --pre-glob '*.pdf'
1028 to make it so ripgrep only executes the pre-pdftotext command on
1029 files with a .pdf extension.
1030 Multiple --pre-glob flags may be used. Globbing rules match
1032 .gitignore globs. Precede a glob with a ! to exclude it.
1033 This flag has no effect if the --pre flag is not used.
1035 -p, --pretty
1037 This is a convenience alias for --color always --heading
1038 --line-number. This flag is useful when you still want pretty
1039 output even if you’re piping ripgrep to another program or file.
1040 For example: rg -p foo | less -R.
1041 -q, --quiet
1043 Do not print anything to stdout. If a match is found in a file,
1044 then ripgrep will stop searching. This is useful when ripgrep is
1045 used only for its exit code (which will be an error if no matches
1046 are found).
1047 When --files is used, then ripgrep will stop finding files after
1049 finding the first file that matches all ignore rules.
1050 --regex-size-limit NUM+SUFFIX?
1052 The upper size limit of the compiled regex. The default limit is
1053 10M.
1054 The argument accepts the same size suffixes as allowed in the
1056 --max-filesize flag.
1057 -e, --regexp PATTERN ...
1059 A pattern to search for. This option can be provided multiple
1060 times, where all patterns given are searched. Lines matching at
1061 least one of the provided patterns are printed. This flag can also
1062 be used when searching for patterns that start with a dash.
1063 For example, to search for the literal -foo, you can use this flag:
1065 rg -e -foo
1067 You can also use the special -- delimiter to indicate that no more
1069 flags will be provided. Namely, the following is equivalent to the
1070 above:
1071 rg -- -foo
1073 -r, --replace REPLACEMENT_TEXT
1075 Replace every match with the text given when printing results.
1076 Neither this flag nor any other ripgrep flag will modify your
1077 files.
1078 Capture group indices (e.g., $5) and names (e.g., $foo) are
1080 supported in the replacement string. Capture group indices are
1081 numbered based on the position of the opening parenthesis of the
1082 group, where the leftmost such group is $1. The special $0 group
1083 corresponds to the entire match.
1084 In shells such as Bash and zsh, you should wrap the pattern in
1086 single quotes instead of double quotes. Otherwise, capture group
1087 indices will be replaced by expanded shell variables which will
1088 most likely be empty.
1089 To write a literal $, use $$.
1091 Note that the replacement by default replaces each match, and NOT
1093 the entire line. To replace the entire line, you should match the
1094 entire line.
1095 This flag can be used with the -o/--only-matching flag.
1097 -z, --search-zip
1099 Search in compressed files. Currently gzip, bzip2, xz, LZ4, LZMA,
1100 Brotli and Zstd files are supported. This option expects the
1101 decompression binaries to be available in your PATH.
1102 This flag can be disabled with --no-search-zip.
1104 -S, --smart-case
1106 Searches case insensitively if the pattern is all lowercase. Search
1107 case sensitively otherwise.
1108 A pattern is considered all lowercase if both of the following
1110 rules hold:
1111 First, the pattern contains at least one literal character. For
1113 example, a\w contains a literal (a) but just \w does not.
1114 Second, of the literals in the pattern, none of them are considered
1116 to be uppercase according to Unicode. For example, foo\pL has no
1117 uppercase literals but Foo\pL does.
1118 This overrides the -s/--case-sensitive and -i/--ignore-case flags.
1120 --sort SORTBY
1122 This flag enables sorting of results in ascending order. The
1123 possible values for this flag are:
1124 none (Default) Do not sort results. Fastest. Can be multi-threaded.
1126 path Sort by file path. Always single-threaded.
1127 modified Sort by the last modified time on a file. Always single-threaded.
1128 accessed Sort by the last accessed time on a file. Always single-threaded.
1129 created Sort by the creation time on a file. Always single-threaded.
1130 If the chosen (manually or by-default) sorting criteria isn’t
1132 available on your system (for example, creation time is not
1133 available on ext4 file systems), then ripgrep will attempt to
1134 detect this, print an error and exit without searching.
1135 To sort results in reverse or descending order, use the --sortr
1137 flag. Also, this flag overrides --sortr.
1138 Note that sorting results currently always forces ripgrep to
1140 abandon parallelism and run in a single thread.
1141 --sortr SORTBY
1143 This flag enables sorting of results in descending order. The
1144 possible values for this flag are:
1145 none (Default) Do not sort results. Fastest. Can be multi-threaded.
1147 path Sort by file path. Always single-threaded.
1148 modified Sort by the last modified time on a file. Always single-threaded.
1149 accessed Sort by the last accessed time on a file. Always single-threaded.
1150 created Sort by the creation time on a file. Always single-threaded.
1151 If the chosen (manually or by-default) sorting criteria isn’t
1153 available on your system (for example, creation time is not
1154 available on ext4 file systems), then ripgrep will attempt to
1155 detect this, print an error and exit without searching.
1156 To sort results in ascending order, use the --sort flag. Also, this
1158 flag overrides --sort.
1159 Note that sorting results currently always forces ripgrep to
1161 abandon parallelism and run in a single thread.
1162 --stats
1164 Print aggregate statistics about this ripgrep search. When this
1165 flag is present, ripgrep will print the following stats to stdout
1166 at the end of the search: number of matched lines, number of files
1167 with matches, number of files searched, and the time taken for the
1168 entire search to complete.
1169 This set of aggregate statistics may expand over time.
1171 Note that this flag has no effect if --files, --files-with-matches
1173 or --files-without-match is passed.
1174 This flag can be disabled with --no-stats.
1176 -a, --text
1178 Search binary files as if they were text. When this flag is
1179 present, ripgrep’s binary file detection is disabled. This means
1180 that when a binary file is searched, its contents may be printed if
1181 there is a match. This may cause escape codes to be printed that
1182 alter the behavior of your terminal.
1183 When binary file detection is enabled it is imperfect. In general,
1185 it uses a simple heuristic. If a NUL byte is seen during search,
1186 then the file is considered binary and search stops (unless this
1187 flag is present). Alternatively, if the --binary flag is used, then
1188 ripgrep will only quit when it sees a NUL byte after it sees a
1189 match (or searches the entire file).
1190 This flag can be disabled with --no-text. It overrides the --binary
1192 flag.
1193 -j, --threads NUM
1195 The approximate number of threads to use. A value of 0 (which is
1196 the default) causes ripgrep to choose the thread count using
1197 heuristics.
1198 --trim
1200 When set, all ASCII whitespace at the beginning of each line
1201 printed will be trimmed.
1202 This flag can be disabled with --no-trim.
1204 -t, --type TYPE ...
1206 Only search files matching TYPE. Multiple type flags may be
1207 provided. Use the --type-list flag to list all available types.
1208 This flag supports the special value all, which will behave as if
1210 --type was provided for every file type supported by ripgrep
1211 (including any custom file types). The end result is that --type
1212 all causes ripgrep to search in "whitelist" mode, where it will
1213 only search files it recognizes via its type definitions.
1214 --type-add TYPE_SPEC ...
1216 Add a new glob for a particular file type. Only one glob can be
1217 added at a time. Multiple --type-add flags can be provided. Unless
1218 --type-clear is used, globs are added to any existing globs defined
1219 inside of ripgrep.
1220 Note that this MUST be passed to every invocation of ripgrep. Type
1222 settings are NOT persisted. See CONFIGURATION FILES for a
1223 workaround.
1224 Example:
1226 rg --type-add 'foo:*.foo' -tfoo PATTERN.
1228 --type-add can also be used to include rules from other types with
1230 the special include directive. The include directive permits
1231 specifying one or more other type names (separated by a comma) that
1232 have been defined and its rules will automatically be imported into
1233 the type specified. For example, to create a type called src that
1234 matches C++, Python and Markdown files, one can use:
1235 --type-add 'src:include:cpp,py,md'
1237 Additional glob rules can still be added to the src type by using
1239 the --type-add flag again:
1240 --type-add 'src:include:cpp,py,md' --type-add 'src:*.foo'
1242 Note that type names must consist only of Unicode letters or
1244 numbers. Punctuation characters are not allowed.
1245 --type-clear TYPE ...
1247 Clear the file type globs previously defined for TYPE. This only
1248 clears the default type definitions that are found inside of
1249 ripgrep.
1250 Note that this MUST be passed to every invocation of ripgrep. Type
1252 settings are NOT persisted. See CONFIGURATION FILES for a
1253 workaround.
1254 --type-list
1256 Show all supported file types and their corresponding globs.
1257 -T, --type-not TYPE ...
1259 Do not search files matching TYPE. Multiple type-not flags may be
1260 provided. Use the --type-list flag to list all available types.
1261 -u, --unrestricted ...
1263 Reduce the level of "smart" searching. A single -u won’t respect
1264 .gitignore (etc.) files (--no-ignore). Two -u flags will
1265 additionally search hidden files and directories (-./--hidden).
1266 Three -u flags will additionally search binary files (--binary).
1267 rg -uuu is roughly equivalent to grep -r.
1269 --vimgrep
1271 Show results with every match on its own line, including line
1272 numbers and column numbers. With this option, a line with more than
1273 one match will be printed more than once.
1274 -H, --with-filename
1276 Display the file path for matches. This is the default when more
1277 than one file is searched. If --heading is enabled (the default
1278 when printing to a terminal), the file path will be shown above
1279 clusters of matches from each file; otherwise, the file name will
1280 be shown as a prefix for each matched line.
1281 This flag overrides --no-filename.
1283 -w, --word-regexp
1285 Only show matches surrounded by word boundaries. This is roughly
1286 equivalent to putting \b before and after all of the search
1287 patterns.
1288 This overrides the --line-regexp flag.
1290
1292 If ripgrep finds a match, then the exit status of the program is 0. If
1293 no match could be found, then the exit status is 1. If an error
1294 occurred, then the exit status is always 2 unless ripgrep was run with
1295 the --quiet flag and a match was found. In summary:
1296 • 0 exit status occurs only when at least one match was found, and if
1298 no error occurred, unless --quiet was given.
1299 • 1 exit status occurs only when no match was found and no error
1301 occurred.
1302 • 2 exit status occurs when an error occurred. This is true for both
1304 catastrophic errors (e.g., a regex syntax error) and for soft
1305 errors (e.g., unable to read a file).
1306
1308 TL;DR - To disable automatic filtering, use rg -uuu.
1309 One of ripgrep’s most important features is its automatic smart
1311 filtering. It is the most apparent differentiating feature between
1312 ripgrep and other tools like grep. As such, its behavior may be
1313 surprising to users that aren’t expecting it.
1314 ripgrep does four types of filtering automatically:
1316 1. Files and directories that match ignore rules are not searched.
1318 2. Hidden files and directories are not searched.
1320 3. Binary files (files with a NUL byte) are not searched.
1322 4. Symbolic links are not followed.
1324 The first type of filtering is the most sophisticated. ripgrep will
1326 attempt to respect your gitignore rules as faithfully as possible. In
1327 particular, this includes the following:
1328 • Any global rules, e.g., in $HOME/.config/git/ignore.
1330 • Any rules in .gitignore.
1332 • Any local rules, e.g., in .git/info/exclude.
1334 In some cases, ripgrep and git will not always be in sync in terms of
1336 which files are ignored. For example, a file that is ignored via
1337 .gitignore but is tracked by git would not be searched by ripgrep even
1338 though git tracks it. This is unlikely to ever be fixed. Instead, you
1339 should either make sure your exclude rules match the files you track
1340 precisely, or otherwise use git grep for search.
1341 Additional ignore rules can be provided outside of a git context:
1343 • Any rules in .ignore.
1345 • Any rules in .rgignore.
1347 • Any rules in files specified with the --ignore-file flag.
1349 The precedence of ignore rules is as follows, with later items
1351 overriding earlier items:
1352 • Files given by --ignore-file.
1354 • Global gitignore rules, e.g., from $HOME/.config/git/ignore.
1356 • Local rules from .git/info/exclude.
1358 • Rules from .gitignore.
1360 • Rules from .ignore.
1362 • Rules from .rgignore.
1364 So for example, if foo were in a .gitignore and !foo were in an
1366 .rgignore, then foo would not be ignored since .rgignore takes
1367 precedence over .gitignore.
1368 Each of the types of filtering can be configured via command line
1370 flags:
1371 • There are several flags starting with --no-ignore that toggle
1373 which, if any, ignore rules are respected. --no-ignore by itself
1374 will disable all of them.
1375 • -./--hidden will force ripgrep to search hidden files and
1377 directories.
1378 • --binary will force ripgrep to search binary files.
1380 • -L/--follow will force ripgrep to follow symlinks.
1382 As a special short hand, the -u flag can be specified up to three
1384 times. Each additional time incrementally decreases filtering:
1385 • -u is equivalent to --no-ignore.
1387 • -uu is equivalent to --no-ignore --hidden.
1389 • -uuu is equivalent to --no-ignore --hidden --binary.
1391 In particular, rg -uuu should search the same exact content as grep -r.
1393
1395 ripgrep supports reading configuration files that change ripgrep’s
1396 default behavior. The format of the configuration file is an "rc" style
1397 and is very simple. It is defined by two rules:
1398 1. Every line is a shell argument, after trimming whitespace.
1400 2. Lines starting with # (optionally preceded by any amount of
1402 whitespace) are ignored.
1403 ripgrep will look for a single configuration file if and only if the
1405 RIPGREP_CONFIG_PATH environment variable is set and is non-empty.
1406 ripgrep will parse shell arguments from this file on startup and will
1407 behave as if the arguments in this file were prepended to any explicit
1408 arguments given to ripgrep on the command line. Note though that the rg
1409 command you run must still be valid. That is, it must always contain at
1410 least one pattern at the command line, even if the configuration file
1411 uses the -e/--regexp flag.
1412 For example, if your ripgreprc file contained a single line:
1414 --smart-case
1416 then the following command
1418 RIPGREP_CONFIG_PATH=wherever/.ripgreprc rg foo
1420 would behave identically to the following command
1422 rg --smart-case foo
1424 another example is adding types
1426 --type-add
1428 web:*.{html,css,js}*
1429 would behave identically to the following command
1431 rg --type-add 'web:*.{html,css,js}*' foo
1433 same with using globs
1435 --glob=!.git
1437 or
1439 --glob
1441 !.git
1442 would behave identically to the following command
1444 rg --glob '!.git' foo
1446 ripgrep also provides a flag, --no-config, that when present will
1448 suppress any and all support for configuration. This includes any
1449 future support for auto-loading configuration files from pre-determined
1450 paths.
1451 Conflicts between configuration files and explicit arguments are
1453 handled exactly like conflicts in the same command line invocation.
1454 That is, this command:
1455 RIPGREP_CONFIG_PATH=wherever/.ripgreprc rg foo --case-sensitive
1457 is exactly equivalent to
1459 rg --smart-case foo --case-sensitive
1461 in which case, the --case-sensitive flag would override the
1463 --smart-case flag.
1464
1466 Shell completion files are included in the release tarball for Bash,
1467 Fish, Zsh and PowerShell.
1468 For bash, move rg.bash to $XDG_CONFIG_HOME/bash_completion or
1470 /etc/bash_completion.d/.
1471 For fish, move rg.fish to $HOME/.config/fish/completions.
1473 For zsh, move _rg to one of your $fpath directories.
1475
1477 ripgrep may abort unexpectedly when using default settings if it
1478 searches a file that is simultaneously truncated. This behavior can be
1479 avoided by passing the --no-mmap flag which will forcefully disable the
1480 use of memory maps in all cases.
1481 ripgrep may use a large amount of memory depending on a few factors.
1483 Firstly, if ripgrep uses parallelism for search (the default), then the
1484 entire output for each individual file is buffered into memory in order
1485 to prevent interleaving matches in the output. To avoid this, you can
1486 disable parallelism with the -j1 flag. Secondly, ripgrep always needs
1487 to have at least a single line in memory in order to execute a search.
1488 A file with a very long line can thus cause ripgrep to use a lot of
1489 memory. Generally, this only occurs when searching binary data with the
1490 -a flag enabled. (When the -a flag isn’t enabled, ripgrep will replace
1491 all NUL bytes with line terminators, which typically prevents
1492 exorbitant memory usage.) Thirdly, when ripgrep searches a large file
1493 using a memory map, the process will report its resident memory usage
1494 as the size of the file. However, this does not mean ripgrep actually
1495 needed to use that much memory; the operating system will generally
1496 handle this for you.
1497
1499 13.0.0
1500
1502 https://github.com/BurntSushi/ripgrep
1503 Please report bugs and feature requests in the issue tracker. Please do
1505 your best to provide a reproducible test case for bugs. This should
1506 include the corpus being searched, the rg command, the actual output
1507 and the expected output. Please also include the output of running the
1508 same rg command but with the --debug flag.
1509
1511 Andrew Gallant jamslam@gmail.com
1512 2022-01-25 RG(1)