Useful Perl one-liners (2013)

Re:Useful Perl one-liners (2013) by teddyh on Wednesday November 30, 2016 @12:18AM (#13068661)

I prefer this, which is shorter than both of those:

    xargs -0n1 < /proc/$pid/environ

[ Parent | on HN ]

Re:Useful Perl one-liners (2013) by EvilTerran on Wednesday November 30, 2016 @04:52AM (#13069543)

Oh, nice! I always forget that xargs defaults to echoing the parameters if you don't specify a command.

That said, variations on my one are also handy for doing any further processing on the lines - eg, I do stuff like this pretty regularly:

    perl -ln0e '/^FOO=/&&print' /proc/$pid/environ

[ Parent | on HN ]