CentOS version information viewing tips

CentOS is one of the Linux distributions, has released multiple versions, then you know which version of CentOS you use? The following small series will introduce you to the method of viewing the CentOS version information, let's learn together.

Method:

1) [root @ localhost ~] # cat /proc /version

Linux version 2.6.18-194.el5 (mockbuild @ builder10 .centos.org) (gcc version 4.1.2 20080704 (Red Hat 4.1.2-48)) #1 SMP Fri Apr 2 14:58:14 EDT 2010

2)

[ Root@localhost ~]# uname -a

Linux localhost.localdomain 2.6.18-194.el5 #1 SMP Fri Apr 2 14:58:14 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux

3)

[root@localhost ~]# uname -r

2.6.18-194.el5

2. View the linux version:

1) List all version information,

[root@localhost ~]# lsb_release -a

LSB Version: :core-3.1-amd64:core-3.1-ia32:core-3.1- Noarch:graphics-3.1-amd64:graphics-3.1-ia32:graphics-3.1-noarch

Distributor ID: CentOS

Description: CentOS release 5.5 (Final)

Release : 5.5

Codename: Final

Note: This command applies to All Linux, including RedHat, SUSE, Debian and other distributions.

2) Execute cat /etc/issue, for example:

[root@localhost ~]# cat /etc/issue

CentOS release 5.5 (Final)

Kernel r on an m

3) Execute cat /etc/redhat-release , for example:

[root@localhost ~]# cat /etc/redhat-release< Br>

CentOS release 5.5 (Final)

Check if the system is 64-bit or 32-bit:

1. getconf LONG_BIT or getconf WORD_BIT

[root@localhost ~ ]# getconf LONG_BIT

64

2, file /bin/ls

[root@localhost ~]# file /bin/ls

/bin /ls: ELF 64-bit LSB executable, AMD x86-64, version 1 (SYSV), for GNU/Linux 2.6.9, dynamically linked (uses shared libs), for GNU/Linux 2.6.9, stripped

3, lsb_release -a

[root@localhost ~]# lsb_release -a

LSB Version: :core-3.1-amd64:core-3.1-ia32:core-3.1-noarch :graphics-3.1-amd64:graphics-3.1-ia32:grap Hics-3.1-noarch

Distributor ID: CentOS

Description: CentOS release 5.5 (Final)

Release: 5.5

Codename: Final

4, or use the method of viewing files.

vim /ect/issue

The above is an introduction to viewing the CentOS version information. In addition to knowing which version you are using, you can also check that the CentOS system you are using is 32-bit. Still 64-bit.