1fgrep(1) User Commands fgrep(1)
2
6 fgrep - search a file for a fixed-character string
7
9 /usr/bin/fgrep [-bchilnsvx] -e pattern_list [file...]
10 /usr/bin/fgrep [-bchilnsvx] -f file [file...]
13 /usr/bin/fgrep [-bchilnsvx] pattern [file...]
16 /usr/xpg4/bin/fgrep [-bchilnqsvx] -e pattern_list [-f file]
19 [file...]
20 /usr/xpg4/bin/fgrep [-bchilnqsvx] [-e pattern_list] -f file
23 [file...]
24 /usr/xpg4/bin/fgrep [-bchilnqsvx] pattern [file...]
27
30 The fgrep (fast grep) utility searches files for a character string and
31 prints all lines that contain that string. fgrep is different from
32 grep(1) and from egrep(1) because it searches for a string, instead of
33 searching for a pattern that matches an expression. fgrep uses a fast
34 and compact algorithm.
35 The characters $, *, [, ^, |, (, ), and \ are interpreted literally by
38 fgrep, that is, fgrep does not recognize full regular expressions as
39 does egrep. These characters have special meaning to the shell. There‐
40 fore, to be safe, enclose the entire string within single quotes (a´).
41 If no files are specified, fgrep assumes standard input. Normally, each
44 line that is found is copied to the standard output. The file name is
45 printed before each line that is found if there is more than one input
46 file.
47
49 The following options are supported for both /usr/bin/fgrep and
50 /usr/xpg4/bin/fgrep:
51 -b Precedes each line by the block number on which the
53 line was found. This can be useful in locating block
54 numbers by context. The first block is 0.
55 -c Prints only a count of the lines that contain the
58 pattern.
59 -e pattern_list Searches for a string in pattern-list. This is use‐
62 ful when the string begins with a −.
63 -f pattern-file Takes the list of patterns from pattern-file.
66 -h Suppresses printing of files when searching multiple
69 files.
70 -i Ignores upper/lower case distinction during compar‐
73 isons.
74 -l Prints the names of files with matching lines once,
77 separated by new-lines. Does not repeat the names of
78 files when the pattern is found more than once.
79 -n Precedes each line by its line number in the file.
82 The first line is 1.
83 -s Works silently, that is, displays nothing except
86 error messages. This is useful for checking the
87 error status.
88 -v Prints all lines except those that contain the pat‐
91 tern.
92 -x Prints only lines that are matched entirely.
95 /usr/xpg4/bin/fgrep
98 The following options are supported for /usr/xpg4/bin/fgrep only:
99 -q Quiet. Does not write anything to the standard output, regardless
101 of matching lines. Exits with zero status if an input line is
102 selected.
103
106 The following operands are supported:
107 file Specifies a path name of a file to be searched for the pat‐
109 terns. If no file operands are specified, the standard input
110 will be used.
111 /usr/bin/fgrep
114 pattern Specifies a pattern to be used during the search for input.
115 /usr/xpg4/bin/fgrep
118 pattern Specifies one or more patterns to be used during the search
119 for input. This operand is treated as if it were specified
120 as -e pattern_list.
121
124 See largefile(5) for the description of the behavior of fgrep when
125 encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).
126
128 See environ(5) for descriptions of the following environment variables
129 that affect the execution of fgrep: LC_COLLATE, LC_CTYPE, LC_MESSAGES,
130 and NLSPATH.
131
133 The following exit values are returned:
134 0 If any matches are found
136 1 If no matches are found
139 2 For syntax errors or inaccessible files, even if matches were
142 found.
143
146 See attributes(5) for descriptions of the following attributes:
147 /usr/bin/fgrep
149 ┌─────────────────────────────┬─────────────────────────────┐
150 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
151 ├─────────────────────────────┼─────────────────────────────┤
152 │Availability │SUNWcsu │
153 └─────────────────────────────┴─────────────────────────────┘
154 /usr/xpg4/bin/fgrep
156 ┌─────────────────────────────┬─────────────────────────────┐
157 │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
158 ├─────────────────────────────┼─────────────────────────────┤
159 │Availability │SUNWxcu4 │
160 ├─────────────────────────────┼─────────────────────────────┤
161 │CSI │Enabled │
162 └─────────────────────────────┴─────────────────────────────┘
163
165 ed(1), egrep(1), grep(1), sed(1), sh(1), attributes(5), environ(5),
166 largefile(5), XPG4(5)
167
169 Ideally, there should be only one grep command, but there is not a sin‐
170 gle algorithm that spans a wide enough range of space-time tradeoffs.
171 Lines are limited only by the size of the available virtual memory.
174 /usr/xpg4/bin/fgrep
176 The /usr/xpg4/bin/fgrep utility is identical to /usr/xpg4/bin/grep -F
177 (see grep(1)). Portable applications should use /usr/xpg4/bin/grep -F.
178SunOS 5.11 24 Mar 2006 fgrep(1)