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Full Discussion: Sequential numbers
Top Forums Shell Programming and Scripting Sequential numbers Post 302562192 by drl on Thursday 6th of October 2011 09:33:00 AM
Old 10-06-2011
Hi.

On Linux and other platforms, e.g. freebsd:
Code:
vm-freebsd ~ % version =o
OS, ker|rel, machine: FreeBSD, 8.0-RELEASE, i386
vm-freebsd ~ % jot 5 11
11
12
13
14
15

cheers, drl
 

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FREEBSD-VERSION(1)					    BSD 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 nei- ther 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>. BSD
October 5, 2013 BSD
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