How to view the Linux operating system version

How to view the Linux operating system version 1. view the kernel version command: chen @ mylinuxserver: ~> Cat/proc/versionLinux version 2.6.5-7.244-smp (geeko @ buildhost) (gcc version 3.3.3 (SuSE Linux) #1 SMP Mon Dec 12 18:32:25 UTC 2005/proc directory? Chen @ mylinuxserver:/proc> uname-aLinux mylinuxserver 2.6.5-7.244-smp #1 SMP Mon Dec 12 18:32:25 UTC 2005 i686 i686 i386 GNU/Linuxchen @ mylinuxserver: /proc> what is the role of the uname-r2.6.5-7.244-smpuname command? 2. view Linux versions: 1) log on to the server and execute lsb_release-a to list all Version information, for example: chen @ mylinuxserver:/proc> lsb_release-aLSB Version: core-2.0-noarch: core-3.0-noarch: core-2.0-ia32: core-3.0-ia32: graphics-2.0-ia32: graphics-2.0-noarch: graphics-3.0-ia32 ID: SUSE LINUXDescription: suse linux Enterprise Server 9 (i586) Release: 9 Codename: n/a note: this command applies to all linux, including Redhat, SuSE, Debian, and other releases. 2) log on to linux and run cat/etc/issue. For example: chen @ mylinuxserver:/proc> cat/etc/issueWelcome to suse linux Enterprise Server 9 (i586) -Kernel \ r (\ l ). 3) log on to linux and execute cat/etc/redhat-release, for example: chen @ mylinuxserver:/proc> cat/etc/* release * LSB_VERSION = "core-2.0-noarch: core-3.0-noarch: core-2.0-ia32: core-3.0-ia32 "cat:/etc/lsb-release.d: is a directory suse linux Enterprise Server 9 (i586) VERSION = 9 PATCHLEVEL = 3