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Top Forums Shell Programming and Scripting How to combine two files with awk? Post 302721857 by pamu on Friday 26th of October 2012 12:53:01 AM
Old 10-26-2012
You better use join.

try

Code:
join file1 file2 -a 1 -a 2

with awk..

Code:
awk 'FNR==NR{a[$1]=$0;next}{if(a[$1]){print a[$1],$2,$3;delete a[$1]}else{print $1"\t"$2,$3}}END{for(i in a){if(a[i]){print a[i]}}}' file2 file1

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gdcmdiff(1)							       GDCM							       gdcmdiff(1)

NAME
gdcmdiff - .SH "SYNOPSIS" gdcmdiff [options] file1 file2 DESCRIPTION
The gdcmdiff command line program takes as input two DICOM file: file1 and file2. PARAMETERS
file1 DICOM input filename file2 DICOM output filename options options -m --meta Compare metainformation. Default is off. -t <n> --truncate <n> String values trimmed to n characters. general options -h --help print this help text and exit -v --version print version information and exit -V --verbose verbose mode (warning+error). -W --warning warning mode, print warning information -E --error error mode, print error information -D --debug debug mode, print debug information Simple usage gdcmdiff is a great tool to diff DICOM files. Usage is simply: $ gdcmdiff input1.dcm input2.dcm SEE ALSO
gdcmdump(1), gdcminfo(1) COPYRIGHT
Copyright (c) 2006-2011 Mathieu Malaterre Version 2.2.0 Tue Feb 5 2013 gdcmdiff(1)
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