Unix Tip: DISPLAY ENTIRE BLOCKS

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 3007 - May 1, 2010

http://www.ugu.com/sui/ugu/show?tip.today

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DISPLAY ENTIRE BLOCKS

To display entire blocks of text which contain a certain pattern, this one-liner can be used:

cat file | perl -e "$/=''; while (<>) {print if /pattern/)}"

Of course, this can be put in a perl-script pgrep:

#!/bin/perl
$/='';
while (<>)
{print if /pattern/)}

This tip generously supported by: hmthage@wanadoo.nl

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