Re: Why following ksh script not works in crontab?

I do the the same thing via cron.... here's what I do: echo "\\ny" | tbtape -a hope it works for you! Ruiming Chen wrote: > The following ksh script works well in command line. > But not work in crontab, why? > > ----------------------------------------------------------------------- > #!/bin/ksh > > # Informix back up logical log and will create a file logical.log > > ontape -a << EOF> ^M > y^M > EOF > > # where ^M is return input in vi by type ctrl-V and Enter > sleep 3 > > hour=`date +%H` > > if [[ $hour -ge 9 && $hour -lt 12 ]] > then cp logical.log logical_tape1.log > else cp logical.log logical_tape2.log > fi > cat /dev/null > logical.log > ------------------------------------------------------------------- > The above script runs perfectly if on command line. But when I schedual > in the crontab, I always got 0 (zero) size of logical_tape1/2.log. It > seems > to me the script does the "cp" command before the "ontape -a" processing > > finish. I even put a "sleep" between them. Why is that? > > Do I have to run the script in background in crontab? like > > 0 10,13 * * * mybackup_script & > > Currently I don't put in background "&" > > BTW, My OS is HP-UX 10.20, database is Informix Dynamic Server 7.3. > For those who has OS Solaris 2.5/6.x, do you have this problem? > To all, do you have solution for me? Thank you very much in advance! > > -- > RC Square Team. > > ------------------------------------------------------------------------ > > Raymond/Ruiming Chui /Chen <rctwo@erols.com> > CS > RC Square > > Raymond/Ruiming Chui /Chen > CS <rctwo@erols.com> > RC Square HTML Mail > U.S.A. Work: 301-498-8959 > Fax: 301-498-8959 > Home: URL http://www.erols.com/rctwo/ > Netscape Conference Address > Netscape Conference DLS Server > Raymond Chui & Ruiming Chen Company > Additional Information: > Last Name Chui /Chen > First NameRaymond/Ruiming > Version 2.1