Comment 15 for bug 15051

I am adding my vote to those who would like to have the -P option
available. In the enterprise world, many corporate scripts are written
and since RHEL and SLES support the -P option, our internal scripts are
making use of this option. Obviously, we have a problem when porting
them to Ubuntu.

Yes, we could change our scripts, or compile ourselves grep with Perl
regular expression support. But this is beside the point. Ubuntu
should make it easy for migration. If other distributions get it right,
why not Ubuntu?

Please seriously consider providing Perl regular expression to grep.