.su is an Internet country code top-level domain (ccTLD) that was designated for the Soviet Union on 19 September 1990. [2] Even though the Soviet Union itself was dissolved 15 months later, the .su top …

Dec 10, 2025 · 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 …

Run a command with substitute user and group id, allow one user to temporarily become another user. It runs a command (often an interactive shell) with the real and effective user id, group id, and …

Nov 14, 2025 · In conclusion, su and sudo are two essential commands in Linux for managing user privileges. While su allows you to switch your user identity to another user, sudo enables you to …

Jun 1, 2025 · Linux su command for changing user IDs to superuser or specified users with detailed syntax, options, examples, and configuration settings for effective use.

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.

Oct 8, 2024 · In this how-to guide, we will explore how to effectively use the su command in Linux with practical examples.

Apr 26, 2025 · The `su` command stands for “substitute user” and it is used to switch users in a Linux environment. In order to use this command, you must have root access.

The su (substitute user) command in Linux is used to switch to another user account within a terminal session. By default, it switches to the root user, allowing administrators to perform tasks that require …