On Thu, 2007-10-04 at 05:03 +0100, Steve Long wrote:
> Donnie Berkholz wrote:
>
> > spec=$(echo ${CHOST} | cut -d- -f3)
> >
> You can do this without resort to an external process:
> IFS=-
> read _ _ spec _ <<< "$CHOST"
> unset IFS
> - or you can do:
> IFS=-
> arr=($CHOST)
> unset IFS
> spec=${arr[2]}
See, another use of bash arrays just because you can?
IFS=-
set -- ${CHOST}
spec=$2
Works fine in bash - and other shells.
You need to preserve IFS when changing it, however. Unless of course,
you're doing this in a function so you can just local IFS=-
Here's a snippet from b2's localmount init script.
IFS=${IFS} SIFS=${IFS-y}
FS=$IFS:
for x in ${NO_UMOUNTS} ${RC_NO_UMOUNTS} ; do
no_umounts="${no_umounts}|${x}"
one
if [ "${SIFS}" = "y" ] ; then
IFS=$OIFS
else
unset IFS
fi
Thanks
Roy
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