To view the version of the CentOS kernel:
1) [[email protected] ~]# cat/proc/version
Linux version 2.6.18-194.el5 ([email protected]) (GCC version 4.1.2 20080704 (Red Hat 4.1.2-48)) #1 SMP Fri APR 2 14:58:14 EDT 2010
2)
[Email protected] ~]# uname-a
Linux localhost.localdomain 2.6.18-194.el5 #1 SMP Fri Apr 2 14:58:14 EDT. x86_64 x86_64 x86_64 Gnu/linux
3)
[Email protected] ~]# uname-r
2.6.18-194.el5
2. View the Linux version:
1) List all version information,
[Email protected] ~]# 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 the Cat/etc/issue, for example as follows:
[Email protected] ~]# cat/etc/issue
CentOS Release 5.5 (Final)
Kernel R on a m
3) Execute the Cat/etc/redhat-release, for example as follows:
[Email protected] ~]# cat/etc/redhat-release
CentOS Release 5.5 (Final)
To see if the system is 64-bit or 32-bit:
1, getconf long_bit or getconf word_bit
[Email protected] ~]# getconf long_bit
64
2, File/bin/ls
[Email protected] ~]# 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 Lib s), for Gnu/linux 2.6.9, stripped
3, Lsb_release-a
[Email protected] ~]# 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
How to query CentOS View System kernel version, system version, 32-bit or 64-bit