The boomerang progress bar under the shell

When you write a shell script, you encounter some long-awaited commands, and to make the user look more comfortable, add some display to make the script appear to be running instead of stuck.

So I did my own research and wrote the two scripts to provide a solution, but all have a disadvantage need to adjust the parameters according to the actual time to make it more consistent with the requirements

Hope to be helpful to everyone

First edition

#!/bin/bash

X= "

Y=0

While [$y-le 100]

Do

printf "Installation progress:%-50s%d%%\r" $x $y

Sleep 0.1

Let y+=2

x=# $x

Done

Echo

Second Edition

#!/bin/bash

X= "

Y=0

While [$y-le 50]

Do

printf "Installing please later:%-6s\r" $x

Sleep 0.5

Let y+=2

x=. $x

if [$x = = ' ... ']; Then

x=.

Fi

Done

printf "%10b" ... Installation Complete ...

Echo

The boomerang progress bar under the shell