Regular expression query in AWK Post: 302075639

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I can print a line with an expression using this: awk '/regex/' I can print the line immediately before an expression using this: awk '/regex/{print x};{x=$0}' How do I print the line immediately before and then the line with the expression?

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need help guys for Regular expression in awk

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Hello, I have big files which I wanna filter them based on first column. first column should be one of these strings: chr2L || chr2R || chr3L || chr3R || chr4 || chrX and something like chr2Lh or chrY or chrM3L is not accepted. I used the following command: awk '{ if ($1=="chr2L" ||...

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Hi All, I would like to search a regular expression by passing as an i/p variableto AWK. For Example :: 162.111.101.209.9516 162.111.101.209.41891 162.111.101.209.9516 162.111.101.209.9517 162.111.101.209.41918 162.111.101.209.9517 162.111.101.209.41937 162.111.101.209.41951...

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sru::request

SRU::Request(3pm)					User Contributed Perl Documentation					 SRU::Request(3pm)

NAME

       SRU::Request - Factories for creating SRU request objects.

SYNOPSIS

	   use SRU::Request;
	   my $request = SRU::Request->newFromURI( $uri );

DESCRIPTION

       SRU::Request allows you to create the appropriate SRU request object from a URI object. This allows you to pass in a URI and get back one
       of SRU::Request::Explain, SRU::Request::Scan or SRU::Request::SearchRetrieve depending on the type of URI that is passed in. See the docs
       for those classes for more information about what they contain.

METHODS

   newFromURI()
       newFromURI() is a factory method which you pass a complete SRU url.  newFromURI() will return an appropriate object for the type of request
       being conducted:

       o   SRU::Request::Explain

       o   SRU::Request::Scan

       o   SRU::Request::SearchRetrieve

       If the request is not formatted properly the call will return undef.  The error encountered should be available in $SRU::Error.

   newFromCGI()
       A factory method for creating a request object from a CGI object.

	   my $cgi = CGI->new();
	   my $request = SRU::Request->newFromCGI( $cgi );

   asXML()
       Used to generate <echoedExplainRequest>, <echoedSearchRetrieveRequest> and <echoedScanRequest> elements in the response.

   type()
       Returns 'searchRetrieve', 'scan' or 'explain' depending on what type of object it is.

perl v5.12.4							    2009-11-20							 SRU::Request(3pm)

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