On Tue, 6 Feb 2001, Andrew So Hing-pong wrote:
> Hi all,
>
> I would like to ask a question about regular expression & patten
> matching on the script writting.
>
> test.sh
> ...
> if [ $1 != "v[0-9][0-9].[0-9][0-9].[0-9][0-9]" ] ; then
> echo "Version must be vXX.XX.XX where X be a digit"
> else
> echo "Version -> [$1]"
> fi
>
> I want to ensure the $1 must v00.00.00 (an example), but the result
>
> any comments ?
> Thanks for your attention !/!
Try this:
if [ ! -z "${1##v[0-9][0-9].[0-9][0-9].[0-9][0-9]}" ]
then
echo "Version must be vXX.XX.XX where X be a digit"
else
echo "Version -> [$1]"
fi
or this for bash/ksh:
if [ "${1##v[0-9][0-9].[0-9][0-9].[0-9][0-9]}" ]
then
echo "Version must be vXX.XX.XX where X be a digit"
else
echo "Version -> [$1]"
fi
--
John Darrah (u05192) | Dept: N/C Programming
Giddens Industries | Ph: (425) 353-0405 #229
PO box 3190 | Ph: (206) 767-4212 #229
Everett WA 98203 | Fx: (206) 764-9639
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