The Unix command su, which stands for "substitute user" [1][2] (or historically "superuser" [3][4]), is used by a computer user to execute commands with the privileges of another user account.

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 …

Dec 30, 2025 · Russia pitches India the Su-57E Felon fighter with source code, tech transfer and local assembly—betting a revamped engine can reopen the arms pipeline.

Nov 14, 2025 · The su command stands for "switch user." It allows a user to change their current user identity to another user. By default, if no username is specified, su will switch to the root …

Jun 1, 2025 · This page covers the GNU / Linux version of su. The su command, which is short for substitute user or switch user, enables the current user to act as another user during the …

Julie Ann Su (Chinese: 蘇維思; born February 19, 1969) [1] is an American attorney and government official who served as acting United States Secretary of Labor from March 11, …

Nov 14, 2025 · One of the most fundamental commands related to user management is su, which stands for switch user or substitute user. This command allows a user to change their current …

Nov 14, 2025 · The su command allows a user to switch to another user account on a Linux system. When you run su, you can either switch to the root user (the superuser with full …

4 days ago · AMD will be advancing AI innovations once again at CES 2026, and its CEO, Dr. Lisa Su, will be unveiling next-gen updates in a few hours.