How to suppress input keying from displaying on terminal.

liteyear18 · #1 (**permalink**) 07-18-2001

I'm a Unix newbie.

In a shell-script, is there any way to accept keyboard input (via STDIN) without having it display on the screen? I know keying in a login password sort of does this by replacing what you key with astericks (*) but I believe that's a "C" routine. I'd like to be able to replicate that function in a Unix shell-script to allow my users to access specific data by prompting (via "read" command) for an "access" code that will NOT show on the terminal screen when it's keyed in. Is that possible?

Any help would be greatly appreciated. Thanks

htsubamoto · #2 (**permalink**) 07-18-2001

Use:

stty -echo

What you type will not be displayed. To undo this:

stty echo

Regards
HTT

liteyear18 · #3 (**permalink**) 07-19-2001

HTT,

I tried your solution and it worked great ! ! !
Thank you very much. LY18

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