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Top Forums UNIX for Dummies Questions & Answers Merging two text files by two columns Post 302605045 by Corona688 on Tuesday 6th of March 2012 01:42:26 PM
Old 03-06-2012
Code:
$ awk 'NR==FNR{D[$1]=$0}; (NR!=FNR) && D[$1] && (!S[$1]++) { print D[$1], $0 }' file1 file2

1334 12 0 0 1 4.5 1334 14 10 0 2 5.5
1340 11 0 0 1 3.5 1340 8 11 0 1 5.6

$

 

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XZDIFF(1)							     XZ Utils								 XZDIFF(1)

NAME
xzcmp, xzdiff, lzcmp, lzdiff - compare compressed files SYNOPSIS
xzcmp [cmp_options] file1 [file2] xzdiff [diff_options] file1 [file2] lzcmp [cmp_options] file1 [file2] lzdiff [diff_options] file1 [file2] DESCRIPTION
xzcmp and xzdiff invoke cmp(1) or diff(1) on files compressed with xz(1), lzma(1), gzip(1), or bzip2(1). All options specified are passed directly to cmp(1) or diff(1). If only one file is specified, then the files compared are file1 (which must have a suffix of a supported compression format) and file1 from which the compression format suffix has been stripped. If two files are specified, then they are uncom- pressed if necessary and fed to cmp(1) or diff(1). The exit status from cmp(1) or diff(1) is preserved. The names lzcmp and lzdiff are provided for backward compatibility with LZMA Utils. SEE ALSO
cmp(1), diff(1), xz(1), gzip(1), bzip2(1), zdiff(1) BUGS
Messages from the cmp(1) or diff(1) programs refer to temporary filenames instead of those specified. Tukaani 2010-09-27 XZDIFF(1)
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