continue bash script after ctrl+c from while loop

Question

Is it possible to get out of a bashscript while loop with CTRL+C and continue in the script instead of exiting it? In my script I have a while function and an menu function. I want to re-run the menu function if CTRL+C is pressed from the running while loop.

#!/bin/bash

function while_loop {
D=1
while [ "1" == $D ]
do
        sleep 5
        echo $D
done
}


function main_menu {
M="i"
while [ "$M" != "e" ]; do
echo -e "auto update:\ta"
echo -e "exit:\t\te"
read -n 1 M
case $M in
    a)  while_loop
        ;;
    e)
        exit 1
        ;;
    *)
        echo "Wrong input!"
esac
done
}

main_menu

glenn jackman · Accepted Answer · 2015-10-11 11:41:28Z

1

Untested, but something like this

trap my_handler INT
my_handler() { D=0; }

The trap command allows you to intercept signals and add your own signal handling.

answered Oct 11, 2015 at 11:41

glenn jackman

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1 Comment

Tom Fenech Over a year ago

I think that the call to sleep is preventing this from working as expected.

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