Info Catalog coreutils: nproc invocation coreutils: System context coreutils: hostname invocation

coreutils: uname invocation

 
 21.4 ‘uname’: Print system information
 ======================================
 
 ‘uname’ prints information about the machine and operating system it is
 run on.  If no options are given, ‘uname’ acts as if the ‘-s’ option
 were given.  Synopsis:
 
      uname [OPTION]...
 
    If multiple options or ‘-a’ are given, the selected information is
 printed in this order:
 
      KERNEL-NAME NODENAME KERNEL-RELEASE KERNEL-VERSION
      MACHINE PROCESSOR HARDWARE-PLATFORM OPERATING-SYSTEM
 
    The information may contain internal spaces, so such output cannot be
 parsed reliably.  In the following example, RELEASE is
 ‘2.2.18ss.e820-bda652a #4 SMP Tue Jun 5 11:24:08 PDT 2001’:
 
      uname -a
      ⇒ Linux dumdum 2.2.18 #4 SMP Tue Jun 5 11:24:08 PDT 2001 i686 unknown unknown GNU/Linux
 
    The program accepts the following options.  Also see ⇒Common
 options.
 
 ‘-a’
 ‘--all’
      Print all of the below information, except omit the processor type
      and the hardware platform name if they are unknown.
 
 ‘-i’
 ‘--hardware-platform’
      Print the hardware platform name (sometimes called the hardware
      implementation).  Print ‘unknown’ if this information is not
      available.  Note this is non-portable (even across GNU/Linux
      distributions).
 
 ‘-m’
 ‘--machine’
      Print the machine hardware name (sometimes called the hardware
      class or hardware type).
 
 ‘-n’
 ‘--nodename’
      Print the network node hostname.
 
 ‘-p’
 ‘--processor’
      Print the processor type (sometimes called the instruction set
      architecture or ISA). Print ‘unknown’ if this information is not
      available.  Note this is non-portable (even across GNU/Linux
      distributions).
 
 ‘-o’
 ‘--operating-system’
      Print the name of the operating system.
 
 ‘-r’
 ‘--kernel-release’
      Print the kernel release.
 
 ‘-s’
 ‘--kernel-name’
      conformance::) calls this “the implementation of the operating
      system”, because the POSIX specification itself has no notion of
      “kernel”.  The kernel name might be the same as the operating
      system name printed by the ‘-o’ or ‘--operating-system’ option, but
      it might differ.  Some operating systems (e.g., FreeBSD, HP-UX)
      have the same name as their underlying kernels; others (e.g.,
      GNU/Linux, Solaris) do not.
 
 ‘-v’
 ‘--kernel-version’
      Print the kernel version.
 
    An exit status of zero indicates success, and a nonzero value
 indicates failure.
 

Info Catalog coreutils: nproc invocation coreutils: System context coreutils: hostname invocation