Even though the Soviet Union itself was dissolved 15 months later, the .su top-level domain remains in use to the present day. It is administered by the Russian Institute for Public Networks (RIPN, or …

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3 days ago · The su Linux command switches users and elevates privileges in a session. This guide shows how it works and when to use it.

su is mostly designed for unprivileged users, the recommended solution for privileged users (e.g., scripts executed by root) is to use non-set-user-ID command runuser(1) that does not require authentication …

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Jul 23, 2025 · As a new Linux user, you may always face confusion regarding the difference between `su` command and `su -` command. In Linux, the `su` command is used to switch to another user …

Dec 17, 2024 · The su command, short for “substitute user,” is a utility in Unix and Linux-based operating systems that allows a user to switch to another user’s shell.

The su command in Linux and Unix-like systems allows a user to switch their current user ID to that of another user. If no username is specified, su defaults to switching to the superuser (root account), …

Nov 14, 2025 · The term su is an abbreviation for switch user or substitute user. This command allows you to change the current user context to another user account on the Linux system, which is crucial …

Apr 26, 2025 · In this article, we’ve looked at some examples of the su command in action, discussed best practices for using it, explored some alternatives, and covered some important security …