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Full Discussion: SED command help
Top Forums Shell Programming and Scripting SED command help Post 302141925 by bd_joy on Tuesday 23rd of October 2007 12:20:45 PM
Old 10-23-2007
Bug SED command help

Hello,

I have a script that executes a batch job within our application and then e-mails the log file. What I'm looking to do is to use the sed command to extract a value from this log file and set it as a variable, and then do further processing.

I've searched and read several things on using sed, but I guess I'm just not understanding how it works.

This is what I've formed so far...
Code:
ErrCnt=`cat taic.log | sed -n s/         /p'

This is what the taic.log looks like:


Batch process TAIC started
Running Processes
Processes completed, 0 errors found
Batch process TAIC completed


So, I'm trying to extract the number of errors found as a variable. Any assistance would be appreciated.

Thanks.
 

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EXIGREP(8)                                                    System Manager's Manual                                                   EXIGREP(8)

NAME
EXIGREP - Search Exim's main log SYNOPSIS
exigrep [-l] pattern [log file] ... DESCRIPTION
The exigrep utility is a Perl script that searches one or more main log files for entries that match a given pattern. When it finds a match, it extracts all the log entries for the relevant message, not just those that match the pattern. Thus, exigrep can extract complete log entries for a given message, or all mail for a given user, or for a given host, for example. The -l flag means 'literal', that is, treat all characters in the pattern as standing for themselves. Otherwise the pattern must be a Perl regular expression. The pattern match is case-insensitive. If no file names are given on the command line, the standard input is read. If the location of a zcat command is known from the definition of ZCAT_COMMAND in Local/Makefile, exigrep automatically passes any file whose name ends in COMPRESS_SUFFIX through zcat as it searches it. BUGS
This manual page needs a major re-work. If somebody knows better groff than us and has more experience in writing manual pages, any patches would be greatly appreciated. SEE ALSO
exim(8), perlre(1), /usr/share/doc/exim4-base/ AUTHOR
This manual page was stitched together from spec.txt by Andreas Metzler <ametzler at downhill.at.eu.org>, for the Debian GNU/Linux system (but may be used by others). March 26, 2003 EXIGREP(8)
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