super user do
This line is in some sudoers files, and is not a comment. #includedir is a configuration directive. This directory does not like to have .conf files, so they should be flatly named. eg: 00_default
Check sudoers for errors
Show sudo rules that match for the given user
sudo -l -U username
The order shown is important. sudo picks the last matching rule. Rules are parsed in order from /etc/sudoers and all included files. Because of this,
#includedir /etc/sudoers.d should be the last line in the /etc/sudoers file, and the order of the /etc/sudoers.d/ files will be important when fine tuning rules.
Allow admins to run mtr without a password
Add the following line to /etc/sudoers
Allow several groups and users to execute upstart commands
User_Alias UPSTART_USERS = %wheel, %sysadmin, %adm UPSTART_USERS ALL=(ALL) NOPASSWD: /sbin/start UPSTART_USERS ALL=(ALL) NOPASSWD: /sbin/stop UPSTART_USERS ALL=(ALL) NOPASSWD: /sbin/initctl UPSTART_USERS ALL=(ALL) NOPASSWD: /sbin/restart
Run several commands with one sudo command
sudo -s -- <<EOF whoami whoami EOF
sudo bash -c "whoami ; whoami ;"
- sudoers config - http://ubuntuforums.org/showthread.php?t=1132821