super user do

Examples

#includedir /etc/sudoers.d

#includedir /etc/sudoers.d

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

visudo -c

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

%admin ALL=(ALL)NOPASSWD:/usr/local/sbin/mtr

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

or

sudo bash -c "whoami ; whoami ;"

Links