查看linux系统版本命令

查看linux系统版本命令

一。查看内核版本命令：

1） [root@SOR_SYS ~]/# cat /proc/version Linux version 2.6.18-238.el5 (mockbuild@x86-012.build.bos.redhat.com) (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。查看linux版本：

1) 登录到服务器执行 lsb_release -a ,即可列出所有版本信息,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:这个命令适用于所有的linux，包括Redhat、SuSE、Debian等发行版。

2) 登录到linux执行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) 登录到linux执行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:这种方式下可以直接看到具体的版本号，比如 AS4 Update 1

4)登录到linux执行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:这种方式下可看到一个所谓的release号，比如上边的例子是5

这个release号和实际的版本之间存在一定的对应关系，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)两种方法只对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 ~]/# 来源： [http://blog.csdn.net/zhuying_linux/article/details/6859286](http://blog.csdn.net/zhuying_linux/article/details/6859286)

Linux下查看端口占用情况

用启动服务的账号登录，然后运行命令： lsof -i:<端口号>

例如： www.2cto.com

Linux代码
[root@SonarServer1 user0]/# lsof -i:80

也可使用命令：

netstat -apn|grep <端口号> 例如：

Linux代码
[root@SonarServer1 user0]/# netstat -apn|grep 80

tcp 0 0 :::80 :::/* LISTEN 19408/java
找到进程号以后，再使用以下命令查看详细信息：

ps -aux|grep <进程号>

来源： [http://www.2cto.com/os/201210/164245.html](http://www.2cto.com/os/201210/164245.html)