Runs a command continuously (e.g. rsync) until it succeeds (0 exit code).

nevergonnagiveyouup.sh

#!/usr/bin/bash

nevergonnagiveyouup() {
    false
    while [ $? -ne 0 ]; do
        ${@}

        if [ $? -ne 0 ]; then
            echo "[$(\date +%Y.%m.%d_%H%M)] FAIL: trying again in 60 seconds..."
            sleep 60
            false
        fi
    done
}