On Tue, Nov 16, 2010 at 12:54 PM, Mariano Cediel
<[email protected]> wrote:
> 2010/11/16 mariodebian <[email protected]>:
>> if echo "$X" | grep -q " $A "; then
>>  echo "$A esta en $X"
>> fi
>
> Tan sencillo, que me da vergüenza no haberlo pensado yo.

Más bien tendríá que ser así (va sin probar):
if echo "$X" | grep -q "^$A \| $A \| $A$\|^$A$" ; then ...

Si no te puedes saltar casos :)

Saludos


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