Pablo,
I don't have a machine to check this on, but can't you simply do:
( i checked it out with egrep and it likes it)
^[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]$
Kind regards,
Stephen Hochstetler shochste AT us.ibm DOT com
International Technical Support Organization - Austin
Office - 512-436-8564 FAX - 512-436-8701
ITSO redbooks at http://www.redbooks.ibm.com
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