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Re: Suppress filenames in wc output


From: Eric Blake
Subject: Re: Suppress filenames in wc output
Date: Tue, 11 Feb 2014 13:30:21 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0

On 02/11/2014 01:26 PM, Thomas Bohm wrote:
> Hey,
> 
> By playing with a word list today I noticed I can't compute the number of
> average letters / word by simply doing a calc `wc -m file`/`wc -l file`
> because the filename is part of the output if wc is run on a file (on stdin
> it is suppressed). This is why I added a new flag -q so that a user can
> suppress that part of the output I will.  I don't have high hopes of it
> getting accepted, but I said I try :)

Thanks for the suggestion, but this already does what you want:

calc `wc -m < file`/`wc -l < file`

That is, POSIX requires that when reading from stdin rather than from a
filename, then there will be no filename in the output of wc.  As this
is already a standard way to suppress the output, I see no need to add a -q.

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

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