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Shell Programming and Scripting

Run command in background thru script

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# 1  
Old 01-07-2012
Run command in background thru script
Dear All,

Writing a script in which I want to run a command in background and keep it running even script is finished.

I have tried like below,

`truss -p <pid> >> & /tmp/log &`

But doesnt work.. script goes running and nothing in log file.
# 2  
Old 01-07-2012
The evaluation `...` forces the script to wait until the traced process is finished. Also I suspect that you meant something more like the following...
Code:
truss -p $PID 2&>1  >/tmp/log &

# 3  
Old 01-07-2012
Thanks Skrynesaver, but this code also doesnt serve the purpose. Behavior is still the same
# 4  
Old 01-09-2012
One more thing, even when I kill truss manually the log remains empty
# 5  
Old 01-09-2012
Please paste the exact code you are using. I don't see any issue with running this as background process. I tried truss in SunOS and stace in Linux, both seems to work and getting logged in the log file.

--ahamed
# 6  
Old 01-09-2012
Hi Ahamed,
Getting below error while running the code.
Code:
truss: cannot trace '>>': no such process
truss: cannot trace '&': no such process
truss: cannot trace '/tmp/log': no such process
truss: cannot trace '&': no such process

I am giving my code in `` quotes. The issue is only when I run this in script, directly on prompt this command runs properly
# 7  
Old 01-09-2012
Please paste the exact code you are using... Using `...` will wait for the process to complete...

--ahamed
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