topic Re: hide password of other info via shell script in Operating System - HP-UX

hide password of other info via shell script

eric stewart — Tue, 01 Aug 2000 17:30:06 GMT

I have a shell script the prompts the user for some information via the read command that I do not want to be displayed. The terminal type is vt200.
Is there a string that can be written to the terminal to turn display off and another to be turn the display back on?
It would be like echo off and echo on?
TIA

Re: hide password of other info via shell script

Antoanetta Naghiu — Tue, 01 Aug 2000 17:30:05 GMT

echo off and echo on is going to do the job.

Re: hide password of other info via shell script

Alan Riggs — Tue, 01 Aug 2000 17:44:52 GMT

You want something like:

echo "Enter password:"
stty -echo
read PASSWORD
stty echo

Re: hide password of other info via shell script

eric stewart — Tue, 01 Aug 2000 18:05:01 GMT

Thanks Alan works great

Re: hide password of other info via shell script

Andreas Voss — Wed, 02 Aug 2000 07:41:05 GMT

Hi,

just an additional feature to Alans reply:
Within the script add the line:
trap "stty echo" 2 3 15
This ensures that if a user interrupts the script or get a termination signal at the read statement it will turn on echo back.

Cheers

Andrew