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Full Discussion: Search and Replace in Ksh
Top Forums Shell Programming and Scripting Search and Replace in Ksh Post 302118783 by aigles on Thursday 24th of May 2007 07:53:06 AM
Old 05-24-2007
There are two limitations with join :
  • The two files must be sorted.
  • Lines from fileB without correspondance in fileA aren't displayed.

Code:
$ cat fileA
AAAA A
BBBB B
CCCC C
DDDD E
FFFF F
$ cat fileB
BBBB
UUUU
CCCC
AAAA
DDDD
$ join -1 1 -2 1 -o 1.2 fileA fileB
B
$ join -o 1.2 fileA fileB         
B
$

Jean-Pierre.
 

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File::Spec::Functions(3)				User Contributed Perl Documentation				  File::Spec::Functions(3)

NAME
File::Spec::Functions - portably perform operations on file names SYNOPSIS
use File::Spec::Functions; $x = catfile('a','b'); DESCRIPTION
This module exports convenience functions for all of the class methods provided by File::Spec. For a reference of available functions, please consult File::Spec::Unix, which contains the entire set, and which is inherited by the modules for other platforms. For further information, please see File::Spec::Mac, File::Spec::OS2, File::Spec::Win32, or File::Spec::VMS. Exports The following functions are exported by default. canonpath catdir catfile curdir rootdir updir no_upwards file_name_is_absolute path The following functions are exported only by request. devnull tmpdir splitpath splitdir catpath abs2rel rel2abs case_tolerant All the functions may be imported using the ":ALL" tag. COPYRIGHT
Copyright (c) 2004 by the Perl 5 Porters. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
File::Spec, File::Spec::Unix, File::Spec::Mac, File::Spec::OS2, File::Spec::Win32, File::Spec::VMS, ExtUtils::MakeMaker perl v5.16.3 2013-01-16 File::Spec::Functions(3)
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