csh use of grep | tr commands
Robert Huff
roberthuff at rcn.com
Mon Aug 10 01:26:59 UTC 2020
Ernie Luzar writes:
> Double quotes are giving me trouble.
>
> I have a file with a line in it like this
> ip4="10.111.098.2"
> I want to get just the ip address
>
> ip=`grep "ip4=" directory-path/file-name
>
> $ip ends up having ip4="10.111.098.2" in it
>
> ip=`echo -n "${ip}" | tr -d "ip4="
>
> $ip ends up having "10.111.098.2" in it
>
> Putting | tr """ " "` after the echo above gives error.
>
> How do I remove the " around the ip address?
Would awk perhaps be a better tool?
Respectfully,
Robert Huff
--
Get it right: _physical_ distancing; _social_ cohesion
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