Why does this script keep running after receiving SIGINT?
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I learned from https://unix.stackexchange.com/a/230568/674 thatping will exit with 0 after receiving SIGINT, which allows a bash script containing a ping command to continue running instead of exiting.
I have a script with similar behavior:
#!/bin/bash
while true; do
sudo -S sleep 4;
echo $?
sudo -k;
done
When I run it, I type Ctrl-C when it asks me for password, and the script doesn't exit, but continue running. The only difference is that sudo upon receiving SIGINT exits with 1 not 0. So I wonder why the bash script doesn't exit but continue running? Thanks.
$ ./test.sh
[sudo] password for t:
1
[sudo] password for t:
1
[sudo] password for t:
1
...
bash sudo sigint
asked 2 mins ago
Tim
24.4k69238426
add a comment |Â
up vote
0
down vote
favorite
I learned from https://unix.stackexchange.com/a/230568/674 thatping will exit with 0 after receiving SIGINT, which allows a bash script containing a ping command to continue running instead of exiting.
I have a script with similar behavior:
#!/bin/bash
while true; do
sudo -S sleep 4;
echo $?
sudo -k;
done
When I run it, I type Ctrl-C when it asks me for password, and the script doesn't exit, but continue running. The only difference is that sudo upon receiving SIGINT exits with 1 not 0. So I wonder why the bash script doesn't exit but continue running? Thanks.
$ ./test.sh
[sudo] password for t:
1
[sudo] password for t:
1
[sudo] password for t:
1
...
bash sudo sigint
asked 2 mins ago
Tim
24.4k69238426
add a comment |Â
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I learned from https://unix.stackexchange.com/a/230568/674 thatping will exit with 0 after receiving SIGINT, which allows a bash script containing a ping command to continue running instead of exiting.
I have a script with similar behavior:
#!/bin/bash
while true; do
sudo -S sleep 4;
echo $?
sudo -k;
done
When I run it, I type Ctrl-C when it asks me for password, and the script doesn't exit, but continue running. The only difference is that sudo upon receiving SIGINT exits with 1 not 0. So I wonder why the bash script doesn't exit but continue running? Thanks.
$ ./test.sh
[sudo] password for t:
1
[sudo] password for t:
1
[sudo] password for t:
1
...
bash sudo sigint
asked 2 mins ago
Tim
24.4k69238426
I learned from https://unix.stackexchange.com/a/230568/674 thatping will exit with 0 after receiving SIGINT, which allows a bash script containing a ping command to continue running instead of exiting.
I have a script with similar behavior:
#!/bin/bash
while true; do
sudo -S sleep 4;
echo $?
sudo -k;
done
When I run it, I type Ctrl-C when it asks me for password, and the script doesn't exit, but continue running. The only difference is that sudo upon receiving SIGINT exits with 1 not 0. So I wonder why the bash script doesn't exit but continue running? Thanks.
$ ./test.sh
[sudo] password for t:
1
[sudo] password for t:
1
[sudo] password for t:
1
...
bash sudo sigint
bash sudo sigint
asked 2 mins ago
Tim
24.4k69238426
asked 2 mins ago
Tim
24.4k69238426
asked 2 mins ago
Tim
24.4k69238426
asked 2 mins ago
Tim
24.4k69238426
asked 2 mins ago
Tim
24.4k69238426
24.4k69238426
add a comment |Â
add a comment |Â
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