I'd do it like this: 
$line = '<!-- USER 20 - donkey_pusher_6 -->';
print $1 if $line =~ m/<!-- USER \d+ - ([^\s]+)/i;

[download]
because you might get false-positive matches the other way.
-- 
($_='jjjuuusssttt annootthheer
     pppeeerrrlll haaaccckkeer')=~y/a-z//s;print;

[download]

In reply to Re: Re: Regex simplification by Cody Pendant
in thread [untitled node, ID 192753] by Samn

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