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Old   September 8, 2000, 10:03
Default keep process running
  #1
Jian Xia
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Dear friends,

We are using SGI ORIGIN 2000 system. I tried to keep a process xj(a fortran excute file) running after I logged out. So I typed command: "nohup xj", then logged out. But the process xj stopped at the sametime I logged out. Could any one help me? Thanks.
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Old   September 8, 2000, 10:12
Default Re: keep process running
  #2
Bart Prast
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do this: type xj then type CTRL-z (puts the process on hold) then type bg (puts the process in the background) then logout

make sure the program doesn't send any information to the screen as it will stop while trying to do so
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Old   September 8, 2000, 10:29
Default Re: keep process running
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Zhengtong Xie
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Hi,

An easy way: xj>temp & ; that means put your screen message to temp, and run the code in the background. Then you could logout.

Good luck
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Old   September 8, 2000, 10:49
Default Re: keep process running
  #4
Mark Olesen
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This likely a shell problem. I've experience the same with the SunOS 5.7 ksh, but have had no problems with our SGI's ksh.

"foocmd &" *should* work without difficulties on (t)csh since SIGHUP is caught by cshell.

"nohup foocmd&" or "nohup foocmd > /dev/null&" is required by ksh, since SIGHUP may not be properly (mostly never) caught by ksh

Thus nohup will ALWAYS work, sometimes. For a fully bulletproof backgrounded cmd use 'at' instead: "at -f foocmd.script" now

This also keeps your mailer busy and out of trouble.

cheers, ------------------------------------------------------ Dr. Mark Olesen ZEUNA STAERKER GmbH & Co. KG Biberbachstr. 9 tel: +49 / 821 / 4103-862 D-86154 Augsburg, GERMANY ------------------------------------------------------
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Old   September 8, 2000, 13:18
Default Re: keep process running
  #5
kakollu
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nohup is the right the way to do it, may u should check the man pages for nohup. cox
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Old   September 8, 2000, 20:50
Default Re: keep process running
  #6
Jian Xia
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thanks
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