利用菜单实现不同目录之间的切换

编写一个文件changefile，内容如下：

echo ""
echo "Pls select the dir you want to go"
echo "-------------------------------------------------"
echo "1 : home"
echo "2 : tool"
echo "3 : download"
echo "4 : music"
echo "5 : home/tool"
echo "0 : just exit"
echo "-------------------------------------------------"

needContinue="true"

while [ "$needContinue" = "true" ]
do
    read choice    
    echo ""
    
    case "$choice" in
        0)    needContinue="false"
            ;;
        1)     cd ~
            needContinue="false"
            ;;
        2)  cd ~/tool
            needContinue="false"
            ;;
        3)    cd ~/download
            needContinue="false"
            ;;
        4)    cd ~/music
            needContinue="false"
            ;;
        5)    cd ~ &&
            cd tool
            needContinue="false"
            ;;
    esac
done
echo ""
clear
ls
echo ""

 

保存后执行下面的命令：
source changefile
或者
. changefile    

注意，符号'.' 和changefile中间有空格