Grep for tab character
Brian Dessent
brian@dessent.net
Mon Feb 21 00:51:00 GMT 2005
Robert Mark Bram wrote:
> > How about just using the actual tab character? I don't see any
> > indication that
> > grep is supposed to treat '\t' specially and it seems to behave that way
> > on linux,
> > too.
>
> I have read in many places that \t is a metacharacter for tab in regular
> expressions - but maybe that's only for sed, perl, awk etc...
> http://sitescooper.org/tao_regexps.html
Try "grep -P '\t'" to use perl-compatible regexps. Note that this is a
specific capability of GNU grep, so it will not be portable to systems
that use a different grep. It might be more portable to use "awk
'/\t/'".
Or <ctrl-v><tab> to insert a literal tab as others said.
Brian
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