shell安装进度脚本

#!/bin/bash

b=''

i=0

while [ $i -le  100 ]

do

    printf "Mysql install :[ %-50s ]%d%%\r" $b $i

    if [ $i -le "60" ]

    then

        sleep 0.03

        echo; echo "Install httpd"

    fi

    sleep 0.01

    i=`expr 2 + $i`

    b=#$b

done

echo ; echo -e  "\033[31m OK \033[0m"