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Top Forums Shell Programming and Scripting Remove duplicate lines (the first matching line by field criteria) Post 302418189 by joggdial3000 on Monday 3rd of May 2010 11:18:40 AM
Old 05-03-2010
just pipping a sort solved the problem,

Code:
awk '{A[$1$2$3$4]=$0}END{for (i in A){print A[i]}}' filename | sort

thanks a lot, it worked like a charm Smilie

---------- Post updated at 04:18 PM ---------- Previous update was at 04:17 PM ----------

thank you both Smilie
 

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MKSARY(1)							       Sary								 MKSARY(1)

NAME
mksary - manual page for mksary 1.0.2 SYNOPSIS
mksary [OPTION]... FILE DESCRIPTION
-a, --array=ARRAY set the array file name to ARRAY -b, --block=[SIZE] do block sorting with SIZE [1024] KB block -s, --sort sort the array file -l, --line index every line -w, --word index every word delimited by white spaces -c, --codeset=CODESET, handle CODESET for indexing [bytestream], ASCII, ISO-8859, EUC-JP, Shift_JIS, UTF-8 -L, --locale enable locale support (employ mblen for indexing) -q, --quiet suppress all normal output -v, --version print version information and exit -h, --help display this help and exit COPYRIGHT
Copyright (C) 2000 Satoru Takabayashi All rights reserved. This is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MER- CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. mksary 1.0.2 December 2000 MKSARY(1)
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