uptime(1)

show how long system has been running

linux
freebsd
openbsd
macos

NAME

uptime – show how long system has been running

SYNOPSIS

uptime [--libxo]

DESCRIPTION

The uptime utility displays the current time, the length of time the system has been up, the number of users, and the load average of the system over the last 1, 5, and 15 minutes.

The following options are available:

--libxo: Generate output via libxo(3) in a selection of different human and machine readable formats. See xo_options(7) for details on command line arguments.

FILES

/boot/kernel/kernel: system name list

EXAMPLES

$ uptime
11:23AM  up  3:01, 8 users, load averages: 21.09, 15.43, 12.79

HISTORY

The uptime command appeared in 3.0BSD.

History

FreeBSD 16.0-CURRENT (2026-10-27) to FreeBSD 15.0-RELEASE: the text shown here
FreeBSD 14.5-RELEASE to FreeBSD 14.4-RELEASE
FreeBSD 14.3-RELEASE to FreeBSD 13.3-RELEASE
FreeBSD 13.2-RELEASE to FreeBSD 13.0-RELEASE
FreeBSD 12.4-RELEASE
FreeBSD 12.3-RELEASE
FreeBSD 12.2-RELEASE
FreeBSD 12.1-RELEASE
FreeBSD 12.0-RELEASE
FreeBSD 11.4-RELEASE
FreeBSD 11.3-RELEASE
FreeBSD 11.2-RELEASE
FreeBSD 11.1-RELEASE
FreeBSD 11.0-RELEASE
FreeBSD 10.4-RELEASE
FreeBSD 10.3-RELEASE
FreeBSD 10.2-RELEASE
FreeBSD 10.1-RELEASE
FreeBSD 10.0-RELEASE
FreeBSD 9.3-RELEASE
FreeBSD 9.2-RELEASE
FreeBSD 9.1-RELEASE
FreeBSD 9.0-RELEASE
FreeBSD 8.4-RELEASE
FreeBSD 8.3-RELEASE
FreeBSD 8.2-RELEASE
FreeBSD 8.1-RELEASE
FreeBSD 8.0-RELEASE
FreeBSD 7.4-RELEASE
FreeBSD 7.3-RELEASE
FreeBSD 7.2-RELEASE
FreeBSD 7.1-RELEASE
FreeBSD 7.0-RELEASE
FreeBSD 6.4-RELEASE
FreeBSD 6.3-RELEASE to FreeBSD 5.0-RELEASE
FreeBSD 4.11-RELEASE to FreeBSD 4.4-RELEASE
FreeBSD 4.3-RELEASE to FreeBSD 4.0-RELEASE
FreeBSD 3.5.1-RELEASE to FreeBSD 2.2.5-RELEASE
FreeBSD 2.2.2-RELEASE to FreeBSD 2.0.5-RELEASE

--libxo since FreeBSD 14.4-RELEASE.