svn commit: r293777 - user/cperciva/freebsd-update-build/scripts

[Bryan Drewery]

On 1/12/16 2:42 PM, Bryan Drewery wrote:
> On 1/12/16 2:36 PM, Gleb Smirnoff wrote:
>> On Tue, Jan 12, 2016 at 10:19:30AM -0800, Devin Teske wrote:
>> D> On Tue, 2016-01-12 at 10:08 -0800, Gleb Smirnoff wrote:
>> D> > On Tue, Jan 12, 2016 at 06:06:07PM +0000, Gleb Smirnoff wrote:
>> D> > T> Author: glebius
>> D> > T> Date: Tue Jan 12 18:06:07 2016
>> D> > T> New Revision: 293777
>> D> > T> URL: https://svnweb.freebsd.org/changeset/base/293777
>> D> > T> 
>> D> > T> Log:
>> D> > T>   Adjust script removing .orig files and empty files:
>> D> > T>   - Adopt the regexp to cleaned patches, that don't have
>> D> > T>     diff or subversion header.
>> D> > T>   - Switch from awk to sed, due to bugs in awk regexps.
>> D> > 
>> D> > If anyone interested, in our awk regexp "^diff" would match
>> D> > "    diff", any amount of whitespace. Since ntp has a lot
>> D> > variables named diff, running the script over ntp patches
>> D> > produce a lot of garbage.
>> D> > 
>> D> 
>> D> Gleb, I can't seem to reproduce what you're saying.
>> D> 
>> D> $ echo "   diff" | awk '/^diff/'
>> D> $ echo "   diff" | awk '!/^diff/'
>> D>    diff
>>
>> echo "  diff" | awk '$1 ~ /^diff/ { print $NF }'
>>
> 
> That's not a bug. $1 is "diff".
> 

$0 is the whole line:

# echo "     blah"|awk '{print $1}'
blah

# echo "     blah"|awk '{print $0}'
     blah

-- 
Regards,
Bryan Drewery