Read password from file in shell script

The sudo option allows you to specify a helper program (in the SUDO_ASKPASS variable) that will ask for the password.

Create a script to ask the password (myaskpass.sh):

Then insert this line at the beginning of your script:

and replace all occurences of with:

You can use whatever password asking program you want instead of .

I had to encapsulate it within a script because SUDO_ASKPASS must point to a file, so it won't work with the option required by .

The above works like a charm if it runs from command line or if you choose Run in terminal after double click the script file in the file manager, but if you choose Run or try to launch it from a .desktop file every will ask for the for password again.

---

If you don't want a terminal window at all, you can store the password in a variable and pipe it to .

Maybe there's some security concerns, but I think it's pretty safe (read the comments on this answer).

Insert this line at the beginning of your script:

and replace a

how to enter password automatically in shell script

how to enter root password in shell script