Unix / Linux: Run Sudo Without Password April 9th, 2017 Explains how to run sudo commands without a password on Unix and Linux systems by modifying the sudoers configuration file.
Linux: Run Last Command as Sudo May 23rd, 2015 Objective: You wanted to run a command as root but you forgot to use sudo. There is a useful shell shortcut (using Event Designators) to re-run the previous command under sudo.