linux如何查看操作系统版本、内核、cup等信息

一、Linux查看版本当前操作系统内核信息 uname -a

[root@server001 ~]# uname -a
Linux server001 3.10.0-1160.71.1.el7.x86_64 #1 SMP Tue Jun 28 15:37:28 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
[root@server001 ~]# 

 

二、Linux查看当前操作系统版本信息 cat /proc/version

[root@server001 ~]# cat /proc/version
Linux version 3.10.0-1160.71.1.el7.x86_64 (mockbuild@kbuilder.bsys.centos.org) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-44) (GCC) ) #1 SMP Tue Jun 28 15:37:28 UTC 2022
[root@server001 ~]# 

 

三、Linux查看版本当前操作系统发行版信息 cat /etc/issue

[root@server001 ~]# cat /etc/issue
\S
Kernel \r on an \m

[root@server001 ~]# 

 

四、Linux查看cpu相关信息，包括型号、主频、内核信息等 cat /proc/cpuinfo

[root@server001 ~]# cat /proc/cpuinfo
processor	: 0
vendor_id	: AuthenticAMD
cpu family	: 23
model		: 49
model name	: AMD EPYC 7K62 48-Core Processor
stepping	: 0
microcode	: 0x1000065
cpu MHz		: 2595.124
cache size	: 512 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 2
apicid		: 0
initial apicid	: 0
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm art rep_good nopl extd_apicid eagerfpu pni pclmulqdq ssse3 fma cx16 sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm cmp_legacy cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw topoext retpoline_amd ibpb vmmcall fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt xsavec xgetbv1 arat
bogomips	: 5190.24
TLB size	: 1024 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: AuthenticAMD
cpu family	: 23
model		: 49
model name	: AMD EPYC 7K62 48-Core Processor
stepping	: 0
microcode	: 0x1000065
cpu MHz		: 2595.124
cache size	: 512 KB
physical id	: 0
siblings	: 2
core id		: 1
cpu cores	: 2
apicid		: 1
initial apicid	: 1
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm art rep_good nopl extd_apicid eagerfpu pni pclmulqdq ssse3 fma cx16 sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm cmp_legacy cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw topoext retpoline_amd ibpb vmmcall fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt xsavec xgetbv1 arat
bogomips	: 5190.24
TLB size	: 1024 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management:

[root@server001 ~]# 

 

五、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

[root@server001 ~]# 
[root@server001 ~]# getconf LONG_BIT
64
[root@server001 ~]#