查看Linux系统版本信息命令大全

Linux系统的云服务器在运维过程中，经常会用到查看操作系统、版本、位数、CPU相关信息等操作，本文整理出不同的命令及查询示例，供您选择使用。

一、Linux系统查看当前操作系统发行版本信息

1.命令

cat /etc/redhat-release

2.示例

[root@iZm7e6r1t7cmy53cb07y0Q ~]# cat /etc/redhat-release
CentOS Linux release 8.5.2111
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二、Linux系统查看当前操作系统版本信息

1.命令

cat /proc/version

2.示例

[root@iZm7e6r1t7cmy53cb07y0Q ~]# cat /proc/version
Linux version 4.18.0-147.5.1.el8_1.x86_64 (mockbuild@kbuilder.bsys.centos.org) (gcc version 8.3.1 20190507 (Red Hat 8.3.1-4) (GCC)) #1 SMP Wed Feb 5 02:00:39 UTC 2020
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三、Linux系统查看当前操作系统内核版本信息

1.命令

uname -a

2.示例

[root@iZm7e6r1t7cmy53cb07y0Q ~]# uname -a
Linux iZm7e6r1t7cmy53cb07y0Q 4.18.0-147.5.1.el8_1.x86_64 #1 SMP Wed Feb 5 02:00:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
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四、Linux系统服务器查看cpu及其相关信息

1.命令

cat /proc/cpuinfo

2.示例

[root@iZm7e6r1t7cmy53cb07y0Q ~]# cat /proc/cpuinfo
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 79
model name	: Intel(R) Xeon(R) CPU E5-2682 v4 @ 2.50GHz
stepping	: 1
microcode	: 0x1
cpu MHz		: 2499.996
cache size	: 40960 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 1
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 20
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single pti ibrs ibpb stibp fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx smap xsaveopt arat
bugs		: cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit
bogomips	: 4999.99
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 79
model name	: Intel(R) Xeon(R) CPU E5-2682 v4 @ 2.50GHz
stepping	: 1
microcode	: 0x1
cpu MHz		: 2499.996
cache size	: 40960 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 1
apicid		: 1
initial apicid	: 1
fpu		: yes
fpu_exception	: yes
cpuid level	: 20
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single pti ibrs ibpb stibp fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm rdseed adx smap xsaveopt arat
bugs		: cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs taa itlb_multihit
bogomips	: 4999.99
clflush size	: 64
cache_alignment	: 64
address sizes	: 46 bits physical, 48 bits virtual
power management:

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五、Linux系统查看当前CPU运行在多少位模式下

1.命令

getconf LONG_BIT

2.示例

[root@iZm7e6r1t7cmy53cb07y0Q ~]# getconf LONG_BIT
64
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