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As tagged bash, parameter expansion based solution can be shorter when used on array: pastebin.com/kgq89527

manatwork
– manatwork

2013-08-21 08:25:07 +00:00
Commented Aug 21, 2013 at 8:25
1

@manatwork Beautiful. I would say this merits to be in answer of its own with a short explanation perhaps...

Joseph R.
– Joseph R.

2013-08-21 08:41:50 +00:00
Commented Aug 21, 2013 at 8:41
However note that performance will be very poor on big files as anything using loops in bash, and that assumes all lines contain one @ and one _ before the left-most @ (and the other usual problems when using read with -r and without setting IFS)

Stéphane Chazelas
– Stéphane Chazelas

2013-08-22 20:01:00 +00:00
Commented Aug 22, 2013 at 20:01

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