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Top Forums Shell Programming and Scripting extract a portion of log file Post 302082519 by chandra004 on Wednesday 2nd of August 2006 06:34:26 PM
Old 08-02-2006
thankyou, that helped.

If I have to put these lines from start pattern to end pattern into another file at the same place, I am not able to do so.
I tried to use sed -s again to try if it adds to the target file. but its adding at the end and also duplicating the lines.

sed -n 's/\"/echo config_start/,/echo \"end_install\"/p"//' config1.log>tmpfile

sed -n 's/\"/echo config_start/,/echo \"end_install\"/p"//' tmpfile config2.log
when I do this, it's adding each line in tmpfile twice and also at the end of config2.log

When looked into sed, i saw sed -f functionality but not able to get the syntax.

I need help in this one aswell.
Regards
chandra
 

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SVK::Log::Filter::Grep(3)				User Contributed Perl Documentation				 SVK::Log::Filter::Grep(3)

SYNOPSIS
SVK::Log::Filter::Grep - search log messages for a given pattern DESCRIPTION
The Grep filter requires a single Perl pattern (regular expression) as its argument. The pattern is then applied to the svn:log property of each revision it receives. If the pattern matches, the revision is allowed to continue down the pipeline. If the pattern fails to match, the pipeline immediately skips to the next revision. The pattern is applied with the /i modifier (case insensitivity). If you want case-sensitivity or other modifications to the behavior of your pattern, you must use the "(?imsx-imsx)" extended pattern (see "perldoc perlre" for details). For example, to search for log messages that match exactly the characters "foo" you might use svk log --filter "grep (?-i)foo" However, to search for "foo" without regards for case, one might try svk log --filter "grep foo" The result of any capturing parentheses inside the pattern are not available. If demand dictates, the Grep filter could be modified to place the captured value somewhere in the stash for other filters to access. If the pattern contains a pipe character ('|'), it must be escaped by preceding it with a '' character. Otherwise, the portion of the pattern after the pipe character is interpreted as the name of a log filter. STASH
/PROPERTY MODIFICATIONS Grep leaves all properties and the stash intact. perl v5.10.0 2008-08-04 SVK::Log::Filter::Grep(3)
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