shell read -p -s hanging, need to press enter key twice to make it run
 

Hi, when i try to input the password with read -s -p "": variable
then it's hanging, it needs me to press the enter key twice, don't know why, anyone can help? thanks

Take a note that, option -s is used for supress or silent, and -p is for prompt, so use only -s.

If you want to hide the password, just do it like,

Using or leaving out '-p "";' doesn't have any effect on 'read' when using BASH 3.2.25(1) so this doesn't explain his observation of having to use enter twice.

Seems to work just fine for GNU bash, version 4.2.39(1)-release

Thanks for all your information, today i found the reason by accident. i put a if sentence and some other command after read, then after i input password, it didn't give reply at all, like it's still waiting me to input the password, but the fact is it's already running, then i add an echo "Program is running, please wait for a while...", then after I input the password, Program is running, please wait for a while... shows immediately, then i figured out this is the reason. thanks again.

Please mark as SOLVED once you have a solution.