Linux Commands | User Management | su Switch Account

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su Command

The su command creates a subshell as another user account. It is used when you need to work temporarily as another user.
Many people think su means “super user”, but it actually means “substitute user”.

Usage

su [-] [user ID][arguments]

Option

  • If you use a hyphen (-), the new shell performs the user’s login process. If no option is given, the new shell only acts as a shell.