Ultimately, I want to have this in a script.

As far as not using sudo, I'm confused then. In looking for how to run truecrypt without needing a password, I read that if this is added to the /etc/sudoers

Code:

%admin ALL=NOPASSWD: /usr/bin/truecrypt

then one can run truecrypt without having to type sudo.

This is in fact the case in my setup. If I have this line in sudoers then I can run truecrypt without prefixing it with sudo. If I don't have this line, then truecrypt asks for admin privileges.

To show truecrypt is not aliased :

Code:

$ type truecrypt
truecrypt is hashed (/usr/bin/truecrypt)

Is truecrypt itself calling sudo to mount? If that is the case, then this makes a little more sense. The more I think of it, the more I feel it is likely this way. But still, truecrypt isn't needing a sudo prefix so how can modifying sudoers affect the truecrypt script? Can someone explain? Why don't I have to have sudo in from of truecrypt as in:

Code:

sudo truecrypt -d ; # to dismount all volumes

as evidenced by this result:

Code:

$ truecrypt -t -v -d
Volume "/home/woodnt/.vol/xj9" has been dismounted.
Volume "/home/woodnt/.vol/i5yq" has been dismounted.

Furthermore, why wouldn't it require mount in sudoers rather than truecrypt if truecrypt is using "sudo mount ..."

Bewildered but enjoying learning,
Narnie

---------- Post updated at 06:15 PM ---------- Previous update was at 05:42 PM ----------

BTW, if I have either of the 2 mount/umount combos I listed in my first post in place I get this when trying to run sudo mount ...

Code:

$ sudo mount --bind Dir1 Dir2
[sudo] password for woodnt:

It still wants a password if I prefix it with sudo even though I've tried:

Code:

%admin ALL=NOPASSWD: /usr/bin/mount

and

Code:

%admin ALL=(ALL) NOPASSWD: /usr/bin/mount

Narnie

This shows I'm in admin group:

Code:

$ groups
woodnt adm disk dialout cdrom audio video plugdev lpadmin admin sambashare vboxusers