sudo

CautionRun as superuser

sudo <command>

Runs one command as root. -i opens a root shell; -u runs as another user. Policy lives in sudoers.

Examples

sudo systemctl restart nginxRestart a service as root
sudo -iOpen a root shell

Syntax

sudo [-i] [-u user] <command>

Before you run it

Mistakes affect the whole system.

Related commands

suSwitch user
visudoEdit sudoers safely
chmodChange permissions

The same reference, with no signal at all

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