uptime

Tell how long the system has been running and other information. More information: https://www.gnu.org/software/coreutils/uptime.

• Print current time, uptime, number of logged-in users and other information:

uptime

• Show only the amount of time the system has been booted for:

uptime --pretty

• Print the date and time the system booted up at:

uptime --since

• Display version:

uptime --version