View centos System Version commands

View centos System Version commands

How can I view the system version of centos? There are several methods:

[root@LAMP1 config]# cat /proc/version Linux version 2.6.32-279.el6.x86_64 (mockbuild@c6b9.bsys.dev.centos.org) (gcc version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) ) #1 SMP Fri Jun 22 12:19:21 UTC 2012[root@LAMP1 config]# uname -aLinux LAMP1.1 2.6.32-279.el6.x86_64 #1 SMP Fri Jun 22 12:19:21 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux[root@LAMP1 config]# uname -r2.6.32-279.el6.x86_64[root@LAMP1 config]# 

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View version:

[root@LAMP1 config]# cat /etc/issueCentOS release 6.3 (Final)Kernel \r on an \m[root@LAMP1 config]# cat /etc/redhat-release CentOS release 6.3 (Final)[root@LAMP1 config]# 

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Check whether it is 64-bit or 32-bit:

[root@LAMP1 config]# getconf LONG_BIT64[root@LAMP1 config]# 

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Use file/bin/ls

[root@LAMP1 config]# file /bin/ls/bin/ls: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped[root@LAMP1 config]#