查看Linux版本系统信息方法

摘要: Linux下如何查看版本信息， 包括位数、版本信息以及CPU内核信息、CPU具体型号（整个CPU信息）、内存信息等等。

1. Linux查看版本当前操作系统内核信息

# uname -a
Linux nas1 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. Linux查看当前操作系统版本信息

# 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

3. Linux查看版本当前操作系统发行版信息

# cat /etc/issue
CentOS release 6.5 (Final)
Kernel \r on an \m

或者

# cat /etc/redhat-release
CentOS release 6.5 (Final)

4. Linux查看cpu相关信息，包括型号、主频、内核信息等

# cat /proc/cpuinfo
processor: 0
vendor_id: GenuineIntel
cpu family: 6
model: 45
model name: Intel(R) Xeon(R) CPU E5-2403 0 @ 1.80GHz
stepping: 7
cpu MHz: 1800.000
cache size: 10240 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 rdtscp lm constant_tsc up arch_perfmon pebs bts xtopology
tsc_reliable nonstop_tsc aperfmperf unfair_spinlock pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx hypervisor lahf_lm arat pln pts dtsbogomips: 3600.00
clflush size: 64
cache_alignment: 64
address sizes: 42 bits physical, 48 bits virtual
power management:

5. Linux查看版本说明当前CPU运行在32bit模式下， 但不代表CPU不支持64bit

# getconf LONG_BIT
64

6. LSB信息

#  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. 内存信息

# cat /proc/meminfo
MemTotal:        1004412 kB
MemFree:          122056 kB
Buffers:          167600 kB
Cached:           198112 kB
SwapCached:        12652 kB
Active:           303752 kB
......