[mdlug] grep bug?

[Robert Citek]

On Wed, Apr 16, 2008 at 6:17 PM, Robert Meier
<list1c30fe42 at bellsouth.net> wrote:
>   bash> for mode in -i ''
>         do
>           for pat in ^ e
>           do
>             (echo hello | grep $mode --color=always -e $pat |
>              head -c100 | wc -c )
>           done
>         done
>   100
>   19
>   6
>   19

Nice.  In slightly modified form:

true && (
echo mode : pattern : count
for mode in '' -i ; do
  for pat in ^ e ; do
    echo "$mode" : "$pat" : $(echo hello |
      grep $mode --color=always -e $pat |
      head -c100 | wc -c )
  done
done
)

mode : pattern : count
 : ^ : 6
 : e : 19
-i : ^ : 100
-i : e : 19

BTW, the bug seems to be fixed with whatever version of grep is in Ubuntu 8.04.

Regards,
- Robert