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Shell Programming and Scripting

Trap

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# 1  
Old 10-22-2013
Linux Trap
Hi Ppl,

Need help

Code:

$ cat trap.sh
#!/bin/bash
trap cleanup 1 2 3 15
cleanup()
{
echo “I was running \”$BASH_COMMAND\” when you interrupted me.”
echo “Quitting.”
exit 1
}
while :
do
echo -en “hello. “
sleep 1
echo -en “my “
sleep 1
echo -en “name “
sleep 1
echo -en “is “
sleep 1
echo “$0”
done


Any reason you ppl see why "1 2 3 15" was used as arument to cleanup


Thanks
# 2  
Old 10-22-2013
1 2 3 15 are not arguments to cleanup they are signals to trap

Code:
1 - hangup
2 - interrupt
3 - quit
15 - software termination (kill)

Check man bash for details of the trap internal command.
This User Gave Thanks to Chubler_XL For This Post:
heman96
# 3  
Old 10-22-2013
Editing your script in Microsoft Word has filled it with nasty smart quotes which the shell will not understand as being quote characters.

Be sure to change all your “ ” back into " " if you want it to work.
This User Gave Thanks to Corona688 For This Post:
heman96
# 4  
Old 10-23-2013
thanks Gents ...
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