Exploring the grep options Post: 302652651

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Top Forums UNIX for Dummies Questions & Answers Exploring the grep options Post 302652651 by SankalpS on Thursday 7th of June 2012 12:49:31 PM

06-07-2012

Registered User

Exploring the grep options

Hi Folks,
I have one query I have a log file to which I reach to putty and I open that particular log file in vi editor and search through /pattern, Suppose I have to search

HTML Code:

<ProgramId>627857272120951075</ProgramId>

Then I have to open abc.log

Code:

cd /var/log/
ls -ltr
vi abc.log
/627857272120951075

I want to know is there any other way in which without opening the log file first
we can know that particular log file conatain the
627857272120951075 this or not any other thing grep or egrep .

SankalpS

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svk::log::filter::grep

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)