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Top Forums Shell Programming and Scripting Removing all lines prior to the last pattern in a file/stream Post 302503783 by Tooka Barf on Friday 11th of March 2011 04:25:57 PM
Old 03-11-2011
Did a quick search on reverse grep, and this should do the trick if you customize it to your problem:

tac /some/log.log | grep -m1 searchword | cut -d ' ' -f7

Seems I'm not allowed to post the link to the article since I'm new here, so you'll have to search for: reverse grep tac, to find it yourself.
 

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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 is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep. If no file is speci- fied, 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 zgrep is invoked as zegrep or zfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, zgrep uses it as the grep program to be invoked. For example: for sh: GREP=fgrep zgrep string files for csh: (setenv GREP fgrep; zgrep string files) AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), egrep(1), fgrep(1), zdiff(1), zmore(1), znew(1), zforce(1), gzip(1), gzexe(1) ZGREP(1)
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