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Full Discussion: Efficient rewrite of code?
Top Forums Shell Programming and Scripting Efficient rewrite of code? Post 302750467 by RudiC on Tuesday 1st of January 2013 06:52:30 AM
Old 01-01-2013
Not sure what you want to achieve. Inferring from pieces of info spread over the posts here and there, you want to check a log file against a list of servers to see if a certain check has been performed, and then output the check's name? You can do that like this:
Code:
$ grep -f servers $LOGFILE| grep "NOTIFICATION:.*$rcheckname" > /dev/null && echo $rcheckname 
PORT_5000_CHECK

Depending on the grep version the commented out server line might not be ignored in the search. What be the contents of ${snhosts}?
Last edited by RudiC; 01-01-2013 at 12:31 PM.. Reason: made a sentence more clear (tried to...)
 

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LEARN ABOUT PLAN9

zgrep

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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