[danso]

Right...but there's a point in having a tool that does PCRE, and all the things useful in grep, in one command, rather than kicking out to Perl.

[a3n]

Agreed, it's nice to consolidate disparate functionality into a single invocation.

But when I saw mVChr's sed line, and then again the perl line, I was reminded "Oh, right, old school." And I wondered for the Nth time how much of old school has been unknowingly reinvented, and how many times.

Nevertheless, I like the new(er) tools in this thread too.