|We don't bite newbies here... much|
grep -Pby tomazos (Deacon)
|on Jun 25, 2006 at 19:55 UTC ( #557464=perlquestion: print w/replies, xml )||Need Help??|
tomazos has asked for the wisdom of the Perl Monks concerning the following question:
In the man page for grep it says:
When I try this I get:
(Using Ubuntu 6.06 Dapper Drake)
Any ideas on the history of this feature? Why is it "not supported"? How do I get a version of grep that supports it?
When the feature works, what is the extent of greps support for Perl regexps? Does it actually use perl, or is it a reimplemented engine?
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