Re: [PATCH v2] Remove useless uses of cat, and replace with filename arguments or redirection

> Josh Triplett <josh@freedesktop.org> writes:
>> Replace all uses of cat that do nothing other than read a single file.  In the
>> case of git-quilt-import, this occurs once per patch.
>>
>> Signed-off-by: Josh Triplett <josh@freedesktop.org>
>> ---
>>
>> This revised version fixes a bug caught by Stephen Rothwell: the output of wc
>> -l changes when it has a filename on the command line.  The same bug occurred
>> in one other place as well.
> 
> Hmph...
> 
>> diff --git a/git-filter-branch.sh b/git-filter-branch.sh
>> index 0c8a7df..346cf3f 100644
>> --- a/git-filter-branch.sh
>> +++ b/git-filter-branch.sh
>> @@ -333,7 +333,7 @@ for commit in $unchanged; do
>>  done
>>  
>>  git-rev-list --reverse --topo-order $srcbranch --not $unchanged >../revs
>> -commits=$(cat ../revs | wc -l | tr -d " ")
>> +commits=$(wc -l ../revs | tr -d -c 0-9)
> 
> ... and left unfixed ;-)?