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Full Discussion: Minutes a program runs.
Top Forums UNIX for Advanced & Expert Users Minutes a program runs. Post 302140676 by 2dumb on Monday 15th of October 2007 10:26:01 AM
Old 10-15-2007
Question Minutes a program runs.

I have a ksh script that executes a program with a predetermined timeout in minutes. If the program takes longer then the timeout then it still completes with a return code of 0. Smilie

I would like to determine how long the program ran. Then if it takes longer than the timeout I would like to specify a new return code. Smilie

I tried to use the time command to display to the screen and log file. Then grab the real time from the output in the log file however I have had not success with redirecting the output to the log file. Smilie

Here is what I am trying to do. See how the output of time does not show up in the log. Smilie
$ time ls home test 2>&1 | tee -a test.log
ls: 0653-341 The file home does not exist.
test

real 0m0.01s
user 0m0.00s
sys 0m0.02s
$ cat test.log
ls: 0653-341 The file home does not exist.
test
There is another problem with this method as well. Depending on what system I run the program on it could take more than an hour to run. Then the real line would return something similar to this “real 4h15m0.23s”. Smilie

Does anyone have a good idea of what I could to determine how long my program is running? Or help me with what I have already started? Smilie
 

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SETSID(1)                                                          User Commands                                                         SETSID(1)

NAME
setsid - run a program in a new session SYNOPSIS
setsid [options] program [arguments] DESCRIPTION
setsid runs a program in a new session. The command calls fork(2) if already a process group leader. Otherwise, it executes a program in the current process. OPTIONS
-c, --ctty Set the controlling terminal to the current one. -w, --wait Wait for the execution of the program to end, and return the exit value of this program as the return value of setsid. -V, --version Display version information and exit. -h, --help Display help text and exit. SEE ALSO
setsid(2) AUTHOR
Rick Sladkey <jrs@world.std.com> AVAILABILITY
The setsid command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/. util-linux July 2014 SETSID(1)
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