I want a program to log in a user, and I was wondering how I would do this with a command, taking everything as an arg, and nothing from stdin (without prompting for a password).
su - Change user ID or become super user
sudo, sudoedit - execute a command as another user
You probably wanna use su or sudo. Not that unless you're root you will be prompted for a password, unless you've configured sudo for this task.
Good luck.
I forgot to say that sudo didn't work...
I want to completely login the user, not run commands as them.
login
login wants input (the password).
I use GDM to automatically login myself upon reboot (so that I can grab a drink after pressing power button and everything would be ready when I return). May be you can mess around with GDM's source to see how they do it?
Sorry this is not definitive answer but something you may want to look into.
I'll definately look into it, thanks.
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