shell script error

[Ian Ward Comfort]

On Dec 6, 2007, at 10:00 AM, Steven Buehler wrote:
> I hope this is the right list to ask this on.  I am creating a  
> shell script for something and the following line (whether run from  
> the script or the command line) gives me an error:
> if [ ! -z /bin/cat /tmp/BACKUP/tmp | /bin/grep 'not accepted' ] ;  
> then echo hi; else echo no; fi


On Dec 6, 2007, at 10:12 AM, <m.roth2006 at rcn.com> wrote:
> However, a simpler, cleaner version would be:
> if [ `grep -c "not accepted" /tmp/BACKUP/tmp` -gt 0 ]; then
>    echo yep
> else
>    echo nope
> fi

Or simpler yet, and much faster with large input:

	if fgrep -q 'not accepted' /tmp/BACKUP/tmp; then
		echo yes
	else
		echo no
	fi

--
Ian Ward Comfort <icomfort at rescomp.stanford.edu>
System Administrator, Student Computing, Stanford University