topic Re: Problem with Script execution using nohup in Operating System - HP-UX

Problem with Script execution using nohup

raiden — Tue, 05 Aug 2008 09:19:05 GMT

Application team complains that they are having problems while executing their scripts using nohup.

As an example they executed the following scripts in /home/pdmcc2/users/XYZ/GetPType-GivenID.tcl using

nohup GetPType-GivenID.tcl &

But the output generated in nohup file is stty: : I/O error. Moreover the nohup file in /home/pdmcc2 is getting update instead of the nohup file in /home/pdmcc2/users/XYZ/.

What can be the problem.
I checked the permission on these files they all have execute permission.

eg: -rwxr-xr-x 1 pdmcc2 pdmuser 1712 Jul 16 17:02 GetPType-GivenID.tcl

Re: Problem with Script execution using nohup

F Verschuren — Tue, 05 Aug 2008 09:54:00 GMT

it looks likes the output of the script is not corectly adressed Just add:
> /home/pdmcc2/users/XYZ/log 2>&1
and looks if it works as requested

Re: Problem with Script execution using nohup

Rasheed Tamton — Tue, 05 Aug 2008 10:22:11 GMT

>nohup GetPType-GivenID.tcl &

nohup GetPType-GivenID.tcl > /tmp/somelogfile 2>&1 &

If the output is not redirected, and the nohup.out is not writable in the current dir from where you issued the command, then it will write to the users's home dir.

So, most probably you do not have write permission on the dir from where you issued the nohup command.

Re: Problem with Script execution using nohup

Steven E. Protter — Tue, 05 Aug 2008 10:39:18 GMT

Shalom,

environment and ssty environment is not correct.

stty -a

env

See whats wrong there.

SEP

Re: Problem with Script execution using nohup

Dennis Handly — Tue, 05 Aug 2008 12:23:39 GMT

>But the output generated in nohup file is stty: : I/O error.

After fixing the redirection of stdout and stderr, you may want to set stdin to null:
nohup ... < /dev/null

Or you need to fix your script to bracket calls to terminal commands to skip them:
if [ -t ]; then
stty ...
fi

Re: Problem with Script execution using nohup

Deepak Kr — Tue, 05 Aug 2008 14:26:12 GMT

Hi,

Please try using below and confirm if you face the same issue:

nohup cd /home/pdmcc2/users/XYZ;./GetPType-GivenID.tcl&

We faced same issue in our environment.

Regds,
Deepak