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Re: grep only lines having matched pattern

by philipbailey (Curate)
on Apr 01, 2021 at 09:19 UTC ( [id://11130665] : note . print w/replies, xml ) Need Help??


in reply to grep only lines having matched pattern

The approach does depend on how your input data varies, but the below will work for your example.
use strict; use warnings; for my $line (<DATA>) { print $line if $line =~ /^\d{2}-\d{2}-\d{4}\s/; } __END__ 03-15-2021-1 21.1.0-s103 2021/03/15:14:16:39 21.1 21.10-s103 03-15-2021-2 21.1.0-s103 2021/03/15:14:16:39 21.1 21.10-s103 03-15-2021 21.1.0-s102 2021/03/15:04:00:09 21.1 21.10-s102