sudo (/ s uː d uː / or / ˈ s uː d oʊ /) is a program for Unix-like computer operating systems that allows users to run programs with the security privileges of another user, by default the superuser. It originally stood for "superuser do" as the older versions of sudo were designed to run commands only as the superuser. However, the later versions added support for running commands not

Learn how to run some or all sudo commands without entering the password on Ubuntu or any other Linux distribution. Most Linux distributions like Ubuntu, Debian, Fedora use the sudo mechanism to allow admin users to run commands with root privileges.. When you run a command with sudo, it asks for your account’s password. Rerun the last command with sudo on the Linux shell Rerun the last command with sudo on the Linux shell. Have you ever executed a command on the shell and noticed the that you had to run it with sudo? Instead of typing the command again with "sudo" in front of it, just run: sudo !! which will execute the command that was run before with sudo. How To Add, Delete And Grant Sudo Privileges To Users In

In your command sudo bash, effectively you are saying Superuser do --> a Bourne shell (bash) Which opens a root user logged in shell. If you just ran sudo the operating system wouldn't know what to do. So in general sudo is followed by a unix command.

bash - how to run two commands in sudo? - Stack Overflow An alternative using eval so avoiding use of a subshell:. sudo -s eval 'whoami; whoami' Note: The other answers using sudo -s fail because the quotes are being passed on to bash and run as a single command so need to strip quotes with eval.eval is better explained is this SO answer. Quoting within the commands is easier too: $ sudo -s eval 'whoami; whoami; echo "end;"' root root end; How to Run Shell Scripts with Sudo Command in Linux Jul 18, 2012

Basic Usage. In the following example, sysadmin has allowed user john to restart apache server. …

Linux Commands for System Admins 1. Uptime. Linux comes with the uptime tool, which allows you to check how long the system has been running and to see how many users are logged in at a given time. The tool also displays the average load on the system in 1-, 5-, and 15-minute intervals. A beginner's guide to understanding sudo on Ubuntu If you're also passing a command name along with the -s option (for example: sudo -s whoami), then the actual command that gets executed is: sudo /bin/bash -c whoami. If you aren't trying to execute any other command (meaning, you're just trying to run sudo -s ) then you get an interactive shell with root privileges. How to Use the ip Command on Linux