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FREEBSD-VERSION(1)	FreeBSD	General	Commands Manual	    FREEBSD-VERSION(1)

NAME
     freebsd-version --	print the version and patch level of the installed
     system

SYNOPSIS
     freebsd-version [-kru] [-j	jail]

DESCRIPTION
     The freebsd-version utility makes a best effort to	determine the version
     and patch level of	the installed kernel and / or userland.

     The following options are available:

     -k		 Print the version and patch level of the installed kernel.
		 Unlike	uname(1), if a new kernel has been installed but the
		 system	has not	yet rebooted, freebsd-version will print the
		 version and patch level of the	new kernel.

     -r		 Print the version and patch level of the running kernel.  Un-
		 like uname(1),	this is	unaffected by environment variables.

     -u		 Print the version and patch level of the installed userland.
		 These are hardcoded into freebsd-version during the build.

     -j	jail	 Print the version and patch level of the installed userland
		 in the	given jail specified by	jid or name.  This option can
		 be specified multiple times.

     If	several	of the above options are specified, freebsd-version will print
     the installed kernel version first, then the running kernel version, next
     the userland version, and finally the userland version of the specified
     jails, on separate	lines.	If neither is specified, it will print the
     userland version only.

IMPLEMENTATION NOTES
     The freebsd-version utility should	provide	the correct answer in the vast
     majority of cases,	including on systems kept up-to-date using
     freebsd-update(8),	which does not update the kernel version unless	the
     kernel itself was affected	by the latest patch.

     To	determine the name (and	hence the location) of a custom	kernel,	the
     freebsd-version utility will attempt to parse /boot/defaults/loader.conf
     and /boot/loader.conf, looking for	definitions of the kernel and bootfile
     variables,	both with a default value of "kernel".	It may however fail to
     locate the	correct	kernel if either or both of these variables are	de-
     fined in a	non-standard location, such as in /boot/loader.rc.

ENVIRONMENT
     ROOT  Path	to the root of the filesystem in which to look for loader.conf
	   and the kernel.

EXAMPLES
     To	determine the version of the currently running userland:

	   /bin/freebsd-version	-u

     To	inspect	a system being repaired	using a	live CD:

	   mount -rt ufs /dev/ada0p2 /mnt
	   env ROOT=/mnt /mnt/bin/freebsd-version -ku

SEE ALSO
     uname(1), loader.conf(5)

HISTORY
     The freebsd-version command appeared in FreeBSD 10.0.

AUTHORS
     The freebsd-version utility and this manual page were written by
     Dag-Erling	Smorgrav <des@FreeBSD.org>.

FreeBSD	13.0			October	1, 2021			  FreeBSD 13.0

NAME | SYNOPSIS | DESCRIPTION | IMPLEMENTATION NOTES | ENVIRONMENT | EXAMPLES | SEE ALSO | HISTORY | AUTHORS

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