Bash builtin read command doesn't seem to support it, now I need to let user input a password while no echo should be displayed, what tool can I use?
#!/bin/bash stty -echo IFS= read -p 'Enter password: ' -r password stty echo printf '\nPassword entered: %s\n' "$password"
stty -echoturns off the terminal echo, which is the display you're talking about;
IFS=is necessary to preserve whitespace in the password;
read -rturns off backslash interpretation.
bash you can also use
read -s, but this feature isn't standard across shells.