dwmcpudt.sh

P=(`</proc/stat awk 'NR==1 { printf("%d %d %d %d\n", $2, $3, $4, $5) }'`)

while true; do
    DT="`date +%c`"
    C=(`</proc/stat awk 'NR==1 { printf("%d %d %d %d\n", $2, $3, $4, $5) }'`)
    CPU="$(( 100 * ((${C[0]} - ${P[0]}) + (${C[1]} - ${P[1]}) + (${C[2]} - ${P[2]})) / ((${C[0]} - ${P[0]}) + (${C[1]} - ${P[1]}) + (${C[2]} - ${P[2]}) + (${C[3]} - ${P[3]})) ))%"
    P=(${C[@]})
    xsetroot -name "$CPU $DT"
    sleep "0.$((1000000000 - `date '+%N' | sed 's/^0\+//'`))"
done &