#!/bin/zsh
monitor() {
    local time=$1
    local lines=0
    local elines=0
    local stop=0
    shift
    trap stop=1 INT
    while [ $stop -eq 0 ]; do
        [  $lines -gt 1 ] && echo -en "\e[${lines}A"
        [ $elines -gt 0 ] && echo -en "\e[${elines}A"
        lines=0
        elines=0
        ($@ | fold -w $COLUMNS | while read -r; do
            echo -E "$REPLY"
            let lines++
        done) 2>&1 | fold -w $COLUMNS | while read -r; do
            echo -E "$REPLY" >&2
            let elines++
        done
        sleep $time || break
    done
}