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Full Discussion: awk updating one file with another, comparing, updating
Top Forums Shell Programming and Scripting awk updating one file with another, comparing, updating Post 302203581 by radoulov on Monday 9th of June 2008 08:39:55 AM
Old 06-09-2008
If the order is not important:

(use nawk or /usr/xpg4/bin/awk on Solaris)

Code:
awk 'END{for(k in _)print _[k]}{_[$NF]=$0}' file1 file2

Otherwise, given your example:

Code:
awk 'END{for(k in _)print _[k]}{_[$NF]=$0}' file1 file2 |
  sort -k3n

Last edited by radoulov; 06-09-2008 at 10:39 AM..
 

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LEARN ABOUT SUSE

lzdiff

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  xdiff 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 or diff.  If only one file is specified, then the files compared are file1 (which must have a suffix of	a  supported  com-
       pression  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 or diff 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 							    2009-07-05								 XZDIFF(1)
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