This might suffice for the initial situation, as long as the expansion is
passed in with single quotes:
function check_n_run() {
greo="$1"; wild="$2"
if $(which "$greo" > /dev/null); then
$greo $wild;
fi
}
This is too cute to be useful, but it was enjoyable seeing the unintend
> On Mon, Apr 21, 2014 at 3:16 AM, Andreas Schwab wrote:
> > And if $greo is null the condition will also be true.
>
> Really? I'll be damned. That explains this problem
> I've been having.
Yes. `test' operates based on the number of arguments it receives. If you
don't quote `$greo' and it e
On Mon, Apr 21, 2014 at 3:16 AM, Andreas Schwab wrote:
> And if $greo is null the condition will also be true.
Really? I'll be damned. That explains this problem
I've been having.
--
Alan Young
Alan Young writes:
> greo=$(command -v greo)
>
> if [ -n $greo ]; then
> $greo ...
> fi
>
> command will search the directories defined in $PATH for the command
> greo and return the fully qualified path. If it isn't found it will
> return null. So, if $greo is non-zero, greo exists and you c
greo=$(command -v greo)
if [ -n $greo ]; then
$greo ...
fi
command will search the directories defined in $PATH for the command
greo and return the fully qualified path. If it isn't found it will
return null. So, if $greo is non-zero, greo exists and you can run
it.
On Sun, Apr 20, 2014 at 1
No, because the $greo semanti /var/db/pkg/*/*/USE line will not be
executed at all. The if [ -n $greo ] condition only passes if $greo
contains the path of the greo application.
On Sun, Apr 20, 2014 at 12:05 PM, Toralf Förster wrote:
> On 04/20/2014 07:58 PM, Alan Young wrote:
>> greo=$(command
On Sun, Apr 20, 2014 at 08:05:08PM +0200, Toralf Förster wrote:
> If "greo" does not exist - will bash in that case expand /var/db/pkg/*/*/USE
> neverttheless ?
I understand that you want this for *interactive* stuff. Storing the
command in a variable and then test with 'command -v' surely is too
On 04/20/2014 07:58 PM, Alan Young wrote:
> greo=$(command -v greo)
>
> if [ -n $greo ]; then
> $greo ...
> fi
>
> command will search the directories defined in $PATH for the command
> greo and return the fully qualified path. If it isn't found it will
> return null. So, if $greo is non-zero
