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Top Forums Shell Programming and Scripting Need a quick and dirty solution Post 302664121 by expert on Friday 29th of June 2012 03:01:13 AM
Old 06-29-2012
try below
Code:
for var in `awk -F " " '{print $1}' test_file_data | uniq`
do
  grep $var test_file_data | sort | tail -1
done

hope this would work out as simple..

Last edited by Franklin52; 06-29-2012 at 04:10 AM.. Reason: Please use code tags for data and code samples
 

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ZGREP(1)						      General Commands Manual							  ZGREP(1)

NAME
zgrep - search possibly compressed files for a regular expression SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename... DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code: (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep. If the GREP environment variable is set, zgrep uses it as the grep program to be invoked. EXIT CODE
2 - An option that is not supported was specified. AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1) ZGREP(1)
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