〖Linux〗apt-get wait for another apt process

#!/bin/bash

i=0
tput sc
while fuser /var/lib/dpkg/lock >/dev/null 2>&1 ||         fuser /var/cache/apt/archives/lock >/dev/null 2>&1; do
    case $(($i % 4)) in
        0 ) j="-" ;;
        1 ) j="\\" ;;
        2 ) j="|" ;;
        3 ) j="/" ;;
    esac
    tput rc
    echo -en "\r[$j] Waiting for other software managers to finish..." 
    sleep 0.5
    ((i=i+1))
done

/usr/bin/apt-get "$@"