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A simple question

A simple question# Unix - 噫吁兮，危乎高哉

k*r2005-05-16 07:05

1 楼

Could anyone explain to me why and how we use "trap"? I would appreciate if
you could explain it with a simple example. Thanks a lot.

T*r2005-05-16 07:05

2 楼

http://www.uwsg.iu.edu/UAU/shell/script/trap.html

【在 k******r 的大作中提到】

: Could anyone explain to me why and how we use "trap"? I would appreciate if
: you could explain it with a simple example. Thanks a lot.

k*r2005-05-16 07:05

3 楼

Thanks for your reply.
Here is an example from the tutorial referenced by you.
trap 'rm -f $TMPFILE; exit 0' 1 2 15
My question is that are signals system defined? How'd I know their meanings?
Guess I should get a good Unix book. Any recommendation?

if

【在 T********r 的大作中提到】

: http://www.uwsg.iu.edu/UAU/shell/script/trap.html

T*r2005-05-16 07:05

4 楼

man 7 signal

【在 k******r 的大作中提到】

: Thanks for your reply.
: Here is an example from the tutorial referenced by you.
: trap 'rm -f $TMPFILE; exit 0' 1 2 15
: My question is that are signals system defined? How'd I know their meanings?
: Guess I should get a good Unix book. Any recommendation?
:
: if