On Sun, Jan 05, 2003 at 04:13:49AM +0000, Colin Watson wrote: > On Sat, Jan 04, 2003 at 06:58:18PM -0700, Mark Zimmerman wrote: > > shopt -s nullglob > > SOME=FALSE > > MATCH=*.jpg > > for f in $MATCH; do SOME=TRUE; break; done > > > > I tried [ -z $MATCH ] also but it always fails even though echo $MATCH > > prints an empty string. > > You probably need to double-quote "$MATCH" like so. >
Yes, but that's not all. Setting MATCH=*.jpg does not seem to trigger the globbing function in bash, to my surprise. The following does work, though: shopt -s nullglob MATCH=$(printf %s *.jpg) if [ -n "$MATCH" ]; then SOME=TRUE; else SOME=FALSE; fi By the way, I noted many solutions in other threads that should also work fine. The reason I wanted to figure this one out is because it relies only on shell internals. In the event that huge lists of files are involved it may be faster. -- Mark -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
