remiss

#!/bin/bashif [ $# -ne 1 ]; then        echo "Usage: mpcs <sleep-time>"        exit 2filet "i = $1" &>/dev/null|| (echo "NaN"; exit 3)while [ $i -gt 0 ]; do         out="Time left: $i min "        echo -n $out        sleep 60        #sleep 1        j=${#out}        while [ $j -gt 1 ]; do                 # en frem og to tilbake?                echo -en "\b \b"                let j--        done        let i--doneecho "Time left: 0 min"mpc pause 1>/dev/null && echo "Paused" || echo "Failed to pause"