[RndTbl] RegEx help needed (sed?)

[Robert Keizer]

Without a .* except for the end could be done with multiples:

sed "s/^[^\/]*//" /tmp/input | sed "s/^\///" | sed 's/[_\@].*//'



On 2016-11-29 10:11 AM, Paul Sierks wrote:
> .* Is greedy,
>
> sed "s/^.*\/\([^_@]*\).*$/\1/"
>
> Kevin McGregor <kevin.a.mcgregor at gmail.com> wrote:
>
> I'm using sed to massage some input. Specifically, I have input lines
> like
>
> aaaaaaaaaa/BBBBB_ccc at 00000
> or
> aaaaaaaaaa/BBBBB at 00000
>
> and I want the output to always be
>
> BBBBB
>
> I've got most of it, but I can't figure out how to get rid of anything
> at the end of the line after EITHER the underscore OR the '@'
> (including either of those two characters).
>
> Is this possible in one expression in sed? I can do it with piping the
> input through sed twice but I was wondering if one pass would do it.
> Currently I'm using
>
> sed "s/^.*\/\(.*\)[_@].*$/\1/"
>
> Which doesn't get rid of the "_ccc" when it appears, just the "@00000".
>
> Suggestions?
>
>
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