Words by Craig White [Mon, Mar 30, 2009 at 11:41:11AM -0700]: > On Mon, 2009-03-30 at 11:33 -0700, Agile Aspect wrote: > > Craig White wrote: > > > I'm in my bash book and looking on web but can't seem to resolve this > > > simple problem. > > > > > > $ if [ -n "grep A121 myfile.csv" ]; then echo "null"; fi > > > null > > > > > > $ if [ -n "grep A125 myfile.csv" ]; then echo "null"; fi > > > null > > > > > > A125 definitely is null when I just run the grep command in the quotes > > > but A121 definitely is not null. > > > > > > What am I missing on the if/null operator here? > > > > > > Craig > > > > > > > > I believe it's > > > > if [ -z "grep A121 myfile.csv" ]; then echo "null"; fi > ---- > not working for me... > > $ if [ -z "grep A121 ARdebtorsmaster.csv" ]; then echo "null"; fi > $ if [ -z "grep A125 ARdebtorsmaster.csv" ]; then echo "null"; fi No, if [ -z "`grep A121 ARdebtorsmaster.csv`" ]; then echo "null"; fi if [ -z "`grep A125 ARdebtorsmaster.csv`" ]; then echo "null"; fi or [ -z "`grep A121 ARdebtorsmaster.csv`" ] && echo "null" [ -z "`grep A125 ARdebtorsmaster.csv`" ] && echo "null" -- Jose Celestino | http://japc.uncovering.org/files/japc-pgpkey.asc ---------------------------------------------------------------- "One man’s theology is another man’s belly laugh." -- Robert A. Heinlein -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
