====== sudo ======

Use ''vim'' to edit sudo:

<code>
EDITOR=vim visudo
</code>

On Ubuntu, set the default editor:

<code>
sudo update-alternatives --config editor
</code>

Display sudo commands the user can run:

<code>
sudo -l
</code>

Run a command as a specific user:

<code>
sudo -u beandog -- whoami
</code>

Switch to another user:

<code>
sudo -u beandog -s
</code>

=== Syntax ====

<code>
<user/group> <hostnames>= [(<users>)] [NOPASSWD: [ALL|/usr/bin/command,/usr/bin/command2]]
</code>

=== Examples ===

Let user alan run rdiff-backup as another user, not requiring a password:

<code>
alan ALL= (clientuser) NOPASSWD: /usr/bin/rdiff-backup
</code>

Let user alan run one command as root:

<code>
alan ALL= NOPASSWD: /usr/sbin/backup-manager
</code>

Allow user ''steve'' to run any command as user ''beandog'' without asking for password:

<code>
steve ALL=(beandog) NOPASSWD: ALL
</code>

Set PATH for new user. sudo will not pass the user's PATH when switching to another user by default, which can cause problems if calling binaries in /usr/local. Override it with the secure_path option.

<code>
Defaults secure_path = /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
</code>