What is the sudo command?
sudo allows a permitted user to execute a command as the superuser or another user, as specified by the security policy. … If a command is specified, it is passed to the shell for execution via the shell’s -c option. If no command is specified, an interactive shell is executed.
How do I run a command as sudo?
To use sudo to run a command as another user, we need to use the -u (user) option. Here, we’re going run the whoami command as the user mary . If you use the sudo command without the -u option, you’ll run the command as root . And of course, because you’re using sudo you’ll be prompted for your password.
What is sudo Ubuntu?
The sudo command is designed to allow users to run programs with the security privileges of another user, by default the root user. … You can then use this user account to execute administrative commands without a need to logging in to your Ubuntu server as a root user.
How can I tell if sudo is working?
11 Answers. Run sudo -v . It is usually used to extend your sudo password timeout, but can be used for determining whether you have any sudo privileges. $ sudo -v Sorry, user [username] may not run sudo on [hostname].
What can I use instead of sudo?
Open Source Sudo Alternatives
- The OpenBSD doas command is similar to sudo and has been ported to other systems.
- access.
- vsys.
- GNU userv.
- sus.
- super.
- priv.
- calife.
How do I start sudo in Ubuntu?
Steps to Add Sudo User on Ubuntu
- Step 1: Create New User. Log into the system with a root user or an account with sudo privileges. …
- Step 2: Add User to Sudo Group. Most Linux systems, including Ubuntu, have a user group for sudo users. …
- Step 3: Verify User Belongs to Sudo Group. …
- Step 4: Verify Sudo Access.