uname

• The uname system call fills a structure with various system information, including the computer's network name and domain name, and the operating system version it's running.
• The call to uname fills in these fields:
  • sysname The name of the operating system (such as Linux).
  • release, version The Linux kernel release number and version level.
  • machine Some information about the hardware platform running Linux. For x86 Linux, this is i386 or i686, depending on the processor.
  • node The computer's unqualified hostname.
  • __domain The computer's domain name.
• The small http://siber.cankaya.edu.tr/SystemsProgramming/cfiles/print-uname program in Fig. 8.9 prints the Linux release and version number and the hardware information.

  Figure 8.9: Print Linux Version Number and Hardware Information.