multiple bash traps for the same signal

Question

When I use the trap command in bash, the previous trap for the given signal is replaced.

Is there a way of making more than one trap<

Answer 1

I didn't like having to play with these string manipulations which are confusing at the best of times, so I came up with something like this:

(obviously you can modify it for other signals)

exit_trap_command=""
function cleanup {
    eval "$exit_trap_command"
}
trap cleanup EXIT

function add_exit_trap {
    local to_add=$1
    if [[ -z "$exit_trap_command" ]]
    then
        exit_trap_command="$to_add"
    else
        exit_trap_command="$exit_trap_command; $to_add"
    fi
}