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uname

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This is an old revision of this page, as edited by Tzafrir (talk | contribs) at 16:52, 26 August 2010 (Undid revision 380855985 by Jerryobject The table records actual output. Not "what it should be". It is "x86_64" and not "x86-64" (talk)). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

uname (short for unix name) is a software program in Unix and Unix-like computer operating systems that prints the name, version and other details about the current machine and the operating system running on it. The uname system call and command appeared for the first time in PWB/UNIX.

Some Unix variants, such as AT&T UNIX System V Release 3.0 include the related setname program, used to change the values that uname reports.

The GNU version of uname is included in the "sh-utils" or "coreutils" packages. uname itself is not available as a standalone program.

Examples

On a system running Darwin, the output from running uname with the -a command line argument might look like the text below: 

Darwin Roadrunner.local 10.3.0 Darwin Kernel Version 10.3.0: Fri Feb 26 11:58:09 PST 2010; root:xnu-1504.3.12~1/RELEASE_I386 i386

The following table contains examples from various versions of uname on various platforms.[1]

Operating system OS or kernel name (-s) OS name (-o) Machine (-m) Processor (-p) Hardware platform (-i or -M) OS or kernel version (-v) OS or kernel release (-r)
Cygwin (Windows XP), Pentium 4 CYGWIN_NT-5.1 Cygwin i686 unknown unknown 2006-01-20 13:28 1.5.19(0.150/4/2)
FreeBSD 6.1, Intel FreeBSD illegal option i386 i386 [filename of kernel conf file] FreeBSD 6.1-RELEASE-p15 #1: Sun Apr 15 18:04:51 EDT 2007 6.1-RELEASE-p15
IRIX 6.5.30, Origin 2000 IRIX64 illegal option IP30 mips illegal option 07202013 6.5
Solaris 9, Sun Fire 280R SunOS illegal option sun4u sparc SUNW,Sun-Fire-280R Generic_112233-08 5.9
openSUSE 10.3, Core2-duo 64-bit Linux GNU/Linux x86_64 x86_64 x86_64 #1 SMP 2007/09/21 22:29:00 UTC 2.6.22.5-31-default
Debian GNU/kFreeBSD 6.0, AMD GNU/kFreeBSD GNU/kFreeBSD x86_64 amd64 AMD Sempron(tm) Processor 3000+ #0 Thu Nov 26 04:22:59 CET 2009 8.0-1-amd64
Mac OS X Snow Leopard 10.6, Macbook (Late 2007) Darwin illegal option i386 i386 illegal option Darwin Kernel Version 10.0.0: Fri Jul 31 22:47:34 PDT 2009; root:xnu-1456.1.25~1/RELEASE_I386 10.0.0
Haiku R1/Alpha 1, QEMU Haiku Haiku BePC unknown unknown r33109 Sep 12 2009 17:45:45 1
IBM AIX 5.3 AIX AIX 00C57D4D4C00 powerpc unknown 5 3
MINIX 3.1.7, x86 Minix illegal option i686 i386 illegal option 1.7 3
DragonFlyBSD 2.7, AMD64 DragonFly illegal option x86_64 x86_64 [filename of kernel conf file] DragonFly v2.7.3.122.g0ba92-DEVELOPMENT #0: Tue June 8 16:50:35 CEST 2010 2.7-DEVELOPMENT root@Chance.: /usr/obj/usr/src/sys/X86_64_GENERIC

See also

Footnotes

  1. ^ These are merely meant to broadly represent common systems; actual output may vary depending on hardware type, OS version, and which software patches have been installed.
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