Linux下查看系统相关信息

1、显示系统名、节点名称、操作系统的发行版号、操作系统版本、运行系统的机器ID号

[root@TESTHOST ~]# uname -a
Linux TESTHOST 2.6.32-431.el6.x86_64 #1 SMP Fri Nov 22 03:15:09 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

2、显示操作系统的内核版本

[root@TESTHOST ~]# uname -r
2.6.32-431.el6.x86_64

3、查看系统内核版本

[root@TESTHOST ~]# cat /proc/version
Linux version 2.6.32-431.el6.x86_64 (mockbuild@c6b8.bsys.dev.centos.org) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-4) (GCC) ) #1 SMP Fri Nov 22 03:15:09 UTC 2013

4、查看操作系统名称及版本

[root@TESTHOST ~]# cat /etc/issue
CentOS release 6.5 (Final)

Kernel \r on an \m

5、查看操作系统名称及版本，该命令适用于红帽系列

[root@TESTHOST ~]#  cat /etc/redhat-release
CentOS release 6.5 (Final)

6、打印本系统发行版的所有信息，比如发行版的ID，描述信息，具体版本，代号

[root@TESTHOST ~]# lsb_release -a
LSB Version:	:base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
Distributor ID:	CentOS
Description:	CentOS release 6.5 (Final)
Release:	6.5
Codename:	Final

7、查看cpu信息

[root@TESTHOST ~]# cat /proc/cpuinfo
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 60
model name	: Intel(R) Core(TM) i7-4790K CPU @ 4.00GHz
stepping	: 3
cpu MHz		: 3998.842
cache size	: 8192 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 13
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc up arch_perfmon pebs bts xtopology tsc_reliable nonstop_tsc aperfmperf unfair_spinlock pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm ida arat xsaveopt pln pts dts fsgsbase smep
bogomips	: 7997.68
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

8、查看系统工作模式

[root@TESTHOST ~]# getconf LONG_BIT
64