06-14-2011
Is it your script or your terminal that's hanging? Open references to the terminal may cause things to hang when you try to quit. What if you run the command with nohup?
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I have a sript which is going to trigger other 3 scripts in background simultaneously
for eg:
Main Script:(main.sh)
-----------
sh a.sh &
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I have a friend at work that asked me a question today and I figured I would seek help here. How does a shell script know whether it is running in the background or not?
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Hi,
I need to retrieve the exit status of 4 moves running as background processes. The wait command will not work since it can only give me the exit status of the last of the background processes.
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Hi All,
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6. UNIX for Dummies Questions & Answers
My job is launched using this command: I'm at home and having VPN drops so I used nohup and background.
nohup perf_mon -c rating_4_multi,cfg &
The main script is PID 26119, and the sub task under it is 26118 which is not running - just sits there. 26119 runs forever but nothing else runs. I... (2 Replies)
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Hello Everyody,
Having a doubt.
sort file1 &
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PID
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load_cursor_stmt()
{
ls /db/admin/ddl/rmn01000/load_cursor*.sql|while read file
do
echo "${file}"
`nohup db2 -tvf "$file" \&`
done
}Error:
-------
/admin/ddl/rmn01000/load_cursor5.sql /db/admin/ddl/rmn01000/load_cursor6.sql
+ read file
+ echo... (3 Replies)
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Hi,
I want to write a script which continuously checking status of a script running in background by nohup command. And if same script is not running then immediately start the script...please help..
i am using below command to run script
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Heyas,
Since this question (similar) occur every now and then, and given the fact i was thinking about it just recently (1-2 weeks) anyway, i started to write something :p
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Discussion started by: sea
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NICE(1) General Commands Manual NICE(1)
NAME
nice, nohup - run a command at low priority (sh only)
SYNOPSIS
nice [ -number ] command [ arguments ]
nohup command [ arguments ]
DESCRIPTION
Nice executes command with low scheduling priority. If the number argument is present, the priority is incremented (higher numbers mean
lower priorities) by that amount up to a limit of 20. The default number is 10.
The super-user may run commands with priority higher than normal by using a negative priority, e.g. `--10'.
Nohup executes command immune to hangup and terminate signals from the controlling terminal. The priority is incremented by 5. Nohup
should be invoked from the shell with `&' in order to prevent it from responding to interrupts by or stealing the input from the next per-
son who logs in on the same terminal.
FILES
nohup.out standard output and standard error file under nohup
SEE ALSO
csh(1), setpriority(2), renice(8)
DIAGNOSTICS
Nice returns the exit status of the subject command.
BUGS
Nice and nohup are particular to sh(1). If you use csh(1), then commands executed with ``&'' are automatically immune to hangup signals
while in the background. There is a builtin command nohup which provides immunity from terminate, but it does not redirect output to
nohup.out.
Nice is built into csh(1) with a slightly different syntax than described here. The form ``nice +10'' nices to positive nice, and ``nice
-10'' can be used by the super-user to give a process more of the processor.
4th Berkeley Distribution May 8, 1986 NICE(1)