Re: How to start program in cron script?
[EMAIL PROTECTED] (Andy Spiegl) writes: > > 0 8 * * * /usr/local/bin/myprogram 2>&1 | /usr/bin/logger -i -t > > myprogram > > >/dev/null 2>&1 & > That's a nice alternative, but I found that logger doesn't quit after > myprogram is done. What am I overlooking now? The only thing that comes to mind is that myprogram starts something, and logger won't exit until there's nothing left writing to _it_. -- Carey Evans http://home.clear.net.nz/pages/c.evans/ "Is there anyone who actually believes that USAicans are so modest or intellectually honest as to be unable to find someone to sue?" - Cameron Laird
Re: How to start program in cron script?
According to Carey Evans <[EMAIL PROTECTED]>: > > To fix this, you need to stop "myprogram" from sending any output to cron. Oh, of course! I am so stupid. > My recommendation would be: > > 0 8 * * * /usr/local/bin/myprogram >/dev/null 2>&1 & Yes, that was it. Now it works. Thanks a mill! > 0 8 * * * /usr/local/bin/myprogram 2>&1 | /usr/bin/logger -i -t myprogram > >/dev/null 2>&1 & That's a nice alternative, but I found that logger doesn't quit after myprogram is done. What am I overlooking now? Thanks again! Andy. -- Andy Spiegl, University of Technology, Muenchen, Germany E-Mail: [EMAIL PROTECTED] URL: http://www.spiegl.de Finger [EMAIL PROTECTED] for my PGP key o _ _ _ - __o __o /\_ _ \\o (_)\__/o (_) --- _`\<,__`\<,__>(_) (_)/<_\_| \ _|/' \/ -- (_)/ (_) (_)/ (_) (_)(_) (_)(_)' _\o_ ~~~
Re: How to start program in cron script?
[EMAIL PROTECTED] (Andy Spiegl) writes: > I am giving up. For at least an hour I tried to write a > shell script (t obe run by cron) that start another program > and sends it into the background. [snip] > But no matter how I did it, I ended up with the program running > as it should but the starting shell script (let's call it test.sh) > became a zombie: Output from "ps auxw": > > spiegl 32585 1.7 0.0 0 0 Z 0:00 (test.sh ) I would guess that: 1. cron doesn't monitor for its children exiting; 2. cron waits for everything sending output its way to exit before exiting itself. "ps afx" can be instructive for working out _whose_ zombie test.sh is. To fix this, you need to stop "myprogram" from sending any output to cron. My recommendation would be: 0 8 * * * /usr/local/bin/myprogram >/dev/null 2>&1 & if you don't care at all about the output, or 0 8 * * * /usr/local/bin/myprogram 2>&1 | /usr/bin/logger -i -t myprogram >/dev/null 2>&1 & (all on one line, of course) to send any output to the syslog. -- Carey Evans http://home.clear.net.nz/pages/c.evans/ Close your eyes.
