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Top Forums Shell Programming and Scripting Adding header to sub files after splitting the main file using AWK Post 302613221 by Scrutinizer on Tuesday 27th of March 2012 01:50:04 AM
Old 03-27-2012
Also if there are many different files in column 1 of the real input file, you need to close them afterwards otherwise awk will complain that there are too many files open...
Code:
awk -F'\t' 'f!=$1{f=$1;print h>f}{print $2,$3,$4>>f; close(f)}' h="Name\tState\tCountry" OFS='\t' infile

 

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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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