一。檢視核心版本命令：
1） [root@sor_sys ~]# cat /proc/version
linux version 2.6.18-238.el5 ([email protected]) (gcc version 4.1.2 20080704 (red hat 4.1.2-50)) #1 smp sun dec 19 14:22:44 est 2010
[root@sor_sys ~]#
2）[root@sor_sys ~]# uname -r
2.6.18-238.el5
3）[root@sor_sys ~]# uname -a
linux sor_sys.99bill.com 2.6.18-238.el5 #1 smp sun dec 19 14:22:44 est 2010 x86_64 x86_64 x86_64 gnu/linux
[root@sor_sys ~]#
二。檢視linux版本：
1) 登入到伺服器執行 lsb_release -a ,即可列出所有版本資訊,例如:
[root@sor_sys ~]# lsb_release -a
lsb version: :core-4.0-amd64:core-4.0-ia32:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-ia32:printing-4.0-noarch
distributor id: redhatenterpriseas
description: red hat enterprise linux as release 4 (nahant update 4)
release: 4
codename: nahantupdate4
[root@sor_sys ~]#
注:這個命令適用於所有的linux，包括redhat、suse、debian等發行版。
2) 登入到linux執行cat /etc/issue,例如如下:
[root@sor_sys ~]# cat /etc/issue
red hat enterprise linux server release 5.6 (tikanga)
kernel \r on an \m
[root@sor_sys ~]#
3) 登入到linux執行cat /etc/redhat-release ,例如如下:
[root@sor_sys ~]# cat /etc/redhat-release
red hat enterprise linux as release 4 (nahant update 4)
[root@sor_sys ~]#
注:這種方式下可以直接看到具體的版本號，比如 as4 update 1
4)登入到linux執行rpm -q redhat-release ,例如如下:
[root@sor_sys ~]# rpm -q redhat-release
redhat-release-5server-5.6.0.3
[root@sor_sys ~]#
注:這種方式下可看到乙個所謂的release號，比如上邊的例子是5
這個release號和實際的版本之間存在一定的對應關係，如下：
redhat-release-3as-1 -> redhat enterprise linux as 3
redhat-release-3as-7.4 -> redhat enterprise linux as 3 update 4
redhat-release-4as-2 -> redhat enterprise linux as 4
redhat-release-4as-2.4 -> redhat enterprise linux as 4 update 1
redhat-release-4as-3 -> redhat enterprise linux as 4 update 2
redhat-release-4as-4.1 -> redhat enterprise linux as 4 update 3
redhat-release-4as-5.5 -> redhat enterprise linux as 4 update 4
另:第3)、4)兩種方法只對redhat linux有效
5) [root@sor_sys ~]# file /bin/bash
/bin/bash: 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
[root@sor_sys ~]#
6) [root@sor_sys ~]# file /bin/cat
/bin/cat: 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
[root@sor_sys ~]#
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