BASH - using trap ctrl+c

Question

I'm trying to execute commands inside a script using read, and when the user uses Ctrl+C, I want to stop the execution of the command, but not exit the script. Something like this:

#!/bin/bash  input=$1 while [ "$input" != finish ] do     read -t 10 input     trap 'continue' 2     bash -c "$input" done unset input 

When the user uses Ctrl+C, I want it to continue reading the input and executing other commands. The problem is that when I use a command like:

while (true) do echo "Hello!"; done; 

It doesn't work after I type Ctrl+C one time, but it works once I type it several times.

Answer 1

Use the following code :

#!/bin/bash # type "finish" to exit  stty -echoctl # hide ^C  # function called by trap other_commands() {     tput setaf 1     printf "\rSIGINT caught      "     tput sgr0     sleep 1     printf "\rType a command >>> " }  trap 'other_commands' SIGINT  input="$@"  while true; do     printf "\rType a command >>> "     read input     [[ $input == finish ]] && break     bash -c "$input" done