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You can use any one of the following command to display the FreeBSD operating system version and patch level.
Open the terminal and then type:
Let us see all commands and examples in details .
The freebsd-version command appeared in FreeBSD 10.0 and above. To see the FreeBSD server ver and patch level of the installed kernel, run:
freebsd-version -k
To see the version and patch level of the installed userland:
freebsd-version -u
Fig.01: freebsd-version and other commands in action
Boot from a live FreeBSD CD/DVD. To see a system being repaired using a live CD:
mount -rt ufs /dev/ada0p2 /mnt ## assuming it is ufs ##
env ROOT=/mnt /mnt/bin/freebsd-version -ku
You can also use the following command to find out if FreeBSD kernel is running in 32bit or 64bit mode:
# getconf LONG_BIT
The 64 means I am using 64 bit kernel on 64-bit hardware either from Intel/AMD:
64
Type the following command (it works on all versions of FreeBSD):
umame -a
uname -mrs
My 11.x version:
FreeBSD 11.2-RELEASE-p4 amd64
When I upgraded to 12.x, I see:
FreeBSD 12.2-RELEASE-p1 amd64
| Option | Description |
|---|---|
| -a | Behave as though the options -m, -n, -r, -s, and -v were specified. |
| -i | Display the kernel ident. |
| -K | Find the FreeBSD version of the kernel. |
| -m | Show the type of the current hardware platform. |
| -n | Write the name of the system to standard output. |
| -o | This is a synonym for the -s option, for compatibility with other systems. |
| -p | Find the type of the machine processor architecture to screen |
| -r | Get the current release level of the operating system. |
| -s | Find the name of the operating system implementation to monitor. |
| -U | Show the FreeBSD version of the user environment. |
| -v | Write the version level of this release of the operating system. |