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Top Forums Shell Programming and Scripting Directory containing files,Print names of the files in the directory that are exactly same content. Post 302994419 by anuragpgtgerman on Wednesday 22nd of March 2017 04:23:42 PM
Old 03-22-2017
Directory containing files,Print names of the files in the directory that are exactly same content.

Given a directory containing say a few thousand files,
please output a list of all the names of the files in the directory that are exactly the same, i.e. have the same contents.
Code:
func(a_directory_name) output -> {“matches”: [[fn1, fn2 ...], [fn3, fn4 ...] ... ]}

e.g. func(“/home/my/files”) where the directory /home/ca31319/files might contain foo.txt, foo.iso, foo.jpeg, bar.txt, bar.doc, baz.csv, baz.ppt etc. and say the file foo.txt is the same as bar.doc and foo.iso is the same as baz.csv and baz.ppt then the output would be:

Code:
{
"matches": [
[
"foo.txt",
"bar.doc"
],
[
"foo.iso",
"baz.csv",
“baz.ppt”
]
]
}

 

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Text::Glob(3)						User Contributed Perl Documentation					     Text::Glob(3)

NAME
Text::Glob - match globbing patterns against text SYNOPSIS
use Text::Glob qw( match_glob glob_to_regex ); print "matched " if match_glob( "foo.*", "foo.bar" ); # prints foo.bar and foo.baz my $regex = glob_to_regex( "foo.*" ); for ( qw( foo.bar foo.baz foo bar ) ) { print "matched: $_ " if /$regex/; } DESCRIPTION
Text::Glob implements glob(3) style matching that can be used to match against text, rather than fetching names from a filesystem. If you want to do full file globbing use the File::Glob module instead. Routines match_glob( $glob, @things_to_test ) Returns the list of things which match the glob from the source list. glob_to_regex( $glob ) Returns a compiled regex which is the equivalent of the globbing pattern. glob_to_regex_string( $glob ) Returns a regex string which is the equivalent of the globbing pattern. SYNTAX
The following metacharacters and rules are respected. "*" - match zero or more characters "a*" matches "a", "aa", "aaaa" and many many more. "?" - match exactly one character "a?" matches "aa", but not "a", or "aaa" Character sets/ranges "example.[ch]" matches "example.c" and "example.h" "demo.[a-c]" matches "demo.a", "demo.b", and "demo.c" alternation "example.{foo,bar,baz}" matches "example.foo", "example.bar", and "example.baz" leading . must be explictly matched "*.foo" does not match ".bar.foo". For this you must either specify the leading . in the glob pattern (".*.foo"), or set $Text::Glob::strict_leading_dot to a false value while compiling the regex. "*" and "?" do not match / "*.foo" does not match "bar/baz.foo". For this you must either explicitly match the / in the glob ("*/*.foo"), or set $Text::Glob::strict_wildcard_slash to a false value with compiling the regex. BUGS
The code uses qr// to produce compiled regexes, therefore this module requires perl version 5.005_03 or newer. AUTHOR
Richard Clamp <richardc@unixbeard.net> COPYRIGHT
Copyright (C) 2002, 2003, 2006, 2007 Richard Clamp. All Rights Reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
File::Glob, glob(3) perl v5.18.2 2017-10-06 Text::Glob(3)
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