How should I add a timeout to my scripts?

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How should I add a timeout to my scripts?

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Top Forums Shell Programming and Scripting How should I add a timeout to my scripts?

11-05-2008

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How should I add a timeout to my scripts?

I am running several tcsh scripts in the crontab of my workstation for acquiring, processing and visualizing data. Some of the quicklooks generated by these scripts are automatically copied to an intranet page.

However, I just found out that I have currently about 50 (old) scripts still running because the intranet server is down for the moment. In that case, the scripts hangs on the copy/move actions I inserted. I killed them one by one, but would like to avoid that for the next time. Never thought of that, but is there a neat way to set a time out in my scripts or crontab to automatically kill it after some time? Or any other solutions?

Thanks in advance. Below are some lines from one of the scripts:

set input = /nobackup/users/sharkm/quicklooks
set infodir = /net/intranetserver/homepages/sharkm/pub_info/images

set infile = ${input}/current.jpg
cp $infile ${infodir}/current.jpg

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11-05-2008

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If you were using a Bourne-type shell:
Code:
timeout=600  ## 10 minutes
{
  : put script here
} &
sleep "$timeout"
kill $!
You'll find scripting (as well as getting help) easier if you use a POSIX shell. [T]csh is not recommended for scripting:

Top Ten Reasons not to use the C shell
C shell problems
Csh Programming Considered Harmful

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