1TREESCAN(1) User Contributed Perl Documentation TREESCAN(1)
2
6 treescan - scan directory trees, list dirs/files, stat, sync, grep
7
9 treescan [OPTION...] [PATH...]
10 -q, --quiet do not print list of files/directories
12 -0, --print0 use null character instead of newline to separate names
13 -s, --stat call stat on every entry, to get stat data into cache
14 -d, --dirs only list dirs
15 -f, --files only list files
16 -p, --progress regularly print progress to stderr
17 --sync open/fsync/close every entry
18 -g, --grep=RE only list files that match the gibven perl RegEx
19
21 The treescan command scans directories and their contents recursively.
22 By default it lists all files and directories (with trailing "/"), but
23 it can optionally do various other things.
24 If no paths are given, treescan will use ".", the current directory.
26 OPTIONS
28 -q, --quiet
29 By default, treescan prints the full paths of all directories or
30 files it finds. This option disables printing of filenames
31 completely. This is useful if you want to run treescan solely for
32 its side effects, such as pulling "stat" data into memory.
33 -0, --print0
35 Instead of using newlines, use null characters after each filename.
36 This is useful to avoid quoting problems when piping the result
37 into other programs (for example, GNU grep, xargs and so on all
38 have options to deal with this).
39 -s, --stat
41 Normally, treescan will use heuristics to avoid most "stat" calls,
42 which is what makes it so fast. This option forces it to "stat"
43 every file.
44 This is only useful for the side effect of pulling the "stat" data
46 into the cache. If your disk cache is big enough, it will be filled
47 with file meta data after treescan is done, which can speed up
48 subsequent commands considerably. Often, you can run treescan in
49 parallel with other directory-scanning programs to speed them up.
50 -d, --dirs
52 Only lists directories, not file paths. This is useful if you
53 quickly want a list of directories and their subdirectories.
54 -f, --files
56 Only list files, not directories. This is useful if you want to
57 operate on all files in a hierarchy, and the directories would ony
58 get in the way.
59 -p, --progress
61 Regularly print some progress information to standard error. This
62 is useful to get some progress information on long running tasks.
63 Since the progress is printed to standard error, you can pipe the
64 output of treescan into other programs as usual.
65 --sync
67 The "--sync" option can be used to make sure all the files/dirs in
68 a tree are sync'ed to disk. For example this could be useful after
69 unpacking an archive, to make sure the files hit the disk before
70 deleting the archive file itself.
71 -g, --grep=RE
73 This applies a perl regular expression (see the perlre manpage) to
74 all paths that would normally be printed and will only print
75 matching paths.
76 The regular expression uses an "/s" (single line) modifier by
78 default, so newlines are matched by ".".
79
81 Marc Lehmann <schmorp@schmorp.de>
82 http://home.schmorp.de/
83perl v5.28.1 2019-04-03 TREESCAN(1)