Re: Just want to exclude lines with tabs

Eric Blake <[email protected]> Thu, 19 May 2016 08:42:57 -0600

Newsgroups	gmane.comp.gnu.utils.bugs
Organization	Red Hat, Inc.
Message-ID	<[email protected]>

On 05/18/2016 09:17 PM, xyz2041 wrote:
> Hi,
> 
> I just want to exclude lines that have tabs on them.
> 
> I've tried all of these, but none work.
> 
> What am I missing?

Grep doesn't interpret \t as a valid escape sequence.  This works:

$ printf 'a a\nb\tb\nc c\n' | grep -v $'\t'
a a
c c

if your shell is new enough to have $'' support; otherwise, type a
literal tab in your shell window (often by 'ctrl-v tab' or 'ctrl-v
ctrl-i'), and be sure you properly quote it.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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