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How to exit a shell script if a unix command does not return any value for 10 seconds?

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Top Forums Shell Programming and Scripting How to exit a shell script if a unix command does not return any value for 10 seconds?
# 8  
Old 08-08-2012
Hunting for timeout in man mysql I find it mentioned right below --var name=value:

Code:
       You can also set the following variables by using --var_name=value. The
       --set-variable format is deprecated.

       o  connect_timeout

          The number of seconds before connection timeout. (Default value is
          0.)

Ergo mysql --connect_timeout=10 ... sounds like what you want.
Last edited by Corona688; 08-08-2012 at 03:00 PM..
# 9  
Old 08-08-2012
You may call the mysql in silent mode , i think its -s option.

Theny just trigger a simple select satement like select sysdate and redirect the output to a file.

After 10s check if this file is empty or not using wc -l.
# 10  
Old 08-09-2012
Hi

Can anyone tell me if any command gets hanged in Unix what is its return code?

Is it a non -zero value?
# 11  
Old 08-09-2012
A hanged command doesn't return. That's what hanged means.
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