The Matrix (Bash)

clear
tput setf 2

lines="$(tput lines)"
col="$(tput cols)"

for i in `seq 0 $col`
do
    m[i]=0
done

while [ 0 ]
do
    c=$((RANDOM%col))
    tput cup ${m[c]} $c
    m[c]=$((${m[c]}+1))
    if [ ${m[c]} -gt $lines ]
    then
        m[c]=0
    fi

    d=$((RANDOM%lines/3))
    if [ $d -ne 0 ]
    then
        printf \\$(printf '%03o' $((32+$RANDOM%90)))
        #cat /dev/urandom | tr -d -c [:print:] |  head -c 1
    fi
done