Linux shell 下简单的进度条实现

[root@db145 ~]# cat print_process.sh 
function Proceess(){
spa=''
i=0
while [ $i -le 100 ]
do
 printf "[%-50s] %d%% \r" "$spa" "$i";
 sleep 0.5
 ((i=i+2))
 spa+='#'
done
echo
}

Proceess
[root@db145 ~]# sh print_process.sh 
[#######                                           ] 14%