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Top Forums Shell Programming and Scripting Help with remove duplicate content Post 302573540 by durden_tyler on Monday 14th of November 2011 10:43:40 PM
Old 11-14-2011
Code:
$
$
$ cat f20
data_1 10 US
data_1 2 US
data_1 5 UK
data_2 20 ENGLAND
data_2 12 KOREA
data_3 4 CHINA
data_60 123 US
data_60 23 UK
data_60 45 US
$
$
$ perl -lne '/(\S+)(\s+(\S+)){2}$/; defined $x{"$1:$3"} || print; $x{"$1:$3"}++' f20
data_1 10 US
data_1 5 UK
data_2 20 ENGLAND
data_2 12 KOREA
data_3 4 CHINA
data_60 123 US
data_60 23 UK
$
$

tyler_durden
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SPLIT(1)								FSF								  SPLIT(1)

NAME
split - split a file into pieces SYNOPSIS
split [OPTION] [INPUT [PREFIX]] DESCRIPTION
Output fixed-size pieces of INPUT to PREFIXaa, PREFIXab, ...; default PREFIX is `x'. With no INPUT, or when INPUT is -, read standard input. Mandatory arguments to long options are mandatory for short options too. -a, --suffix-length=N use suffixes of length N (default 2) -b, --bytes=SIZE put SIZE bytes per output file -C, --line-bytes=SIZE put at most SIZE bytes of lines per output file -l, --lines=NUMBER put NUMBER lines per output file --verbose print a diagnostic to standard error just before each output file is opened --help display this help and exit --version output version information and exit SIZE may have a multiplier suffix: b for 512, k for 1K, m for 1 Meg. AUTHOR
Written by Torbjorn Granlund and Richard M. Stallman. REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>. COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. SEE ALSO
The full documentation for split is maintained as a Texinfo manual. If the info and split programs are properly installed at your site, the command info split should give you access to the complete manual. split (coreutils) 4.5.3 February 2003 SPLIT(1)
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