Unix questions - unix command help need it

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unix command help need it

puzzlecracker

2005-02-22, 5:53 pm

Give a Unix shell command that finds all occurences of the string
value=x in the temporary filesystem (/tmp) where x is an integer, and
prints the sum of all of the x's to standard output.

Stephane CHAZELAS

2005-02-22, 5:53 pm

2005-02-22, 07:26(-08), puzzlecracker:
> Give a Unix shell command that finds all occurences of the string
> value=x in the temporary filesystem (/tmp) where x is an integer, and
> prints the sum of all of the x's to standard output.
[...]

Assuming your shell is zsh:

perl -lne's/value=([-+]?\d+)/$n+=$1/ge}{print$n' /tmp/**/*(D.)

--
Stéphane