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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 [-ku]

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.

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

     If both -k and -u are specified, freebsd-version will print the kernel
     version first, then the userland version, 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
     defined 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), freebsd-version(8)

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 11.0-PRERELEASE         October 5, 2013        FreeBSD 11.0-PRERELEASE

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

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=freebsd-version&sektion=1&manpath=FreeBSD+10.3-RELEASE+and+Ports>

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