In article <20061204125740.GC1613@apb-laptoy.apb.alt.za>,
Alan Barrett  <apb@cequrux.com> wrote:
>On Sun, 03 Dec 2006, Hubert Feyrer wrote:
>> On Sun, 8 Oct 2006, Alan Barrett wrote:
>> >I went with    (set -o tabcomplete 2>/dev/null) && set -o tabcomplete
>> 
>> You could also check $KSH_VERSION ...
>
>I have a strong preference for teating whether functionality is
>available, rather than testing version numbers or strings.  Not all
>shells that support "set -o tabcomplete" will set $KSH_VERSION,
>whereas code that says "if 'set -o tabcomplete' works then do 'set -o
>tabcomplete'" will always do the right thing.

Functional tests are always better :-)

christos