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Old 01-06-2010, 02:31 AM   #1
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Ignore/Disable Ctrl-C (SIGINT) in a shell script

How do I write my trap statement in shell script to ignore SIGINT.
Reason being is that the script is used to update records in database. I want to avoid inconsistency in database when user presses Ctrl-C ...

The result should be
1. Totally ignore Ctrl-C (SIGINT) when user presses Ctrl-C
2. Continue with the rest of processing
Old 01-06-2010, 03:35 AM   #2
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trap is what you want.

see, for example,
Old 01-06-2010, 05:51 AM   #3
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try this:

trap "" 2

The number 2 stands for SIGINT (CTRL+C). This should then ignore the interrupt, at least bourne shell (sh) and bash :-)

- Andi -
Old 01-11-2010, 03:30 AM   #4
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It does not work..
The database still interrupts the operation when I press Ctrl-C

I think it is due to the handling within the database software, not on the shell ....


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