查看系统信息

查看linux版本：

登录到linux执行cat /etc/issue,例如如下:

li@Li-ThinkPad:~$ cat /etc/issue
Ubuntu 14.04.1 LTS \n \l

查看内核版本命令：

li@Li-ThinkPad:~$ cat /proc/version

Linux version 3.13.0-32-generic (buildd@roseapple) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #57-Ubuntu SMP Tue Jul 15 03:51:12 UTC 2014

查看linux机器是32位还是64位的方法：

li@Li-ThinkPad:~$ file /sbin/init
/sbin/init: ELF 32-bit LSB  shared object, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=c394677bccc720a3bb4f4c42a48e008ff33e39b1, stripped