〖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 "$@"

 Save to/usr/local/sbin/apt-get, then chmod +x/usr/local/sbin/apt-get.
参考文献:
　　[1] http://askubuntu.com/questions/373425/how-can-i-make-apt-get-wait-for-another-instance-to-finish