View a summary of Linux system versions

How to view version information under Linux, including the number of bits, version information and CPU core information, CPU specific models, etc., the entire CPU information at a glance.

1.uname-a (Linux view version current operating system kernel information)

Linux iz28hv9y2qkz 3.10.0-123.9.3.el7.x86_64 #1 SMP Thu Nov 6 15:06:03 UTC x86_64 x86_64 x86_64 gnu/linux

(x86_64 represents a 64-bit system, I'm Centos7 here)

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2. cat/proc/version (Linux view current operating system version information)

Cat/proc/version

Linux version 3.10.0-123.9.3.el7.x86_64 ([email protected]) (GCC version 4.8.2 20140120 (Red Hat 4.8.2-16) (gcc)) #1 SMP Thu Nov 6 15:06:03 UTC 2014

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3.cat/etc/issue or Cat/etc/redhat-release (centos7 applicable) (Linux view version current operating system release information)

CentOS Linux release 7.2.1511 (Core)

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4.Cat/proc/cpuinfo (Linux view CPU-related information, including model, frequency, kernel information, etc.)

CentOS Linux release 7.2.1511 (Core)

[Email protected] project]# ^c

[Email protected] project]# Cat/proc/cpuinfo

processor:0

Vendor_id:genuineintel

CPU Family:6

Model:45

Model Name:intel (R) Xeon (r) CPU e5-2630 0 @ 2.30GHz

Stepping:7

microcode:0x70d

CPU mhz:2300.048

Cache size:15360 KB

Physical id:0

Siblings:1

Core id:0

CPU Cores:1

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 Clflush MMX FXSR SSE SSE2 HT syscall N X rdtscp lm constant_tsc rep_good nopl pni ssse3 cx16 sse4_1 sse4_2 popcnt AES Hypervisor LAHF_LM

bogomips:4600.09

Clflush size:64

Cache_alignment:64

Address sizes:46 bits physical, bits virtual

Power Management:

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5.getconf long_bit (Linux view version indicates whether the current CPU is running in 32bit mode or 64bit mode)

64

This article is from the "Toast to the Moon" blog, please be sure to keep this source http://meijinmeng.blog.51cto.com/9622619/1726098

View a summary of Linux system versions