How to view version information in Linux

How to view version information under Linux, including bit number, version information, CPU core information, CPU specific model, etc. The entire CPU information is clear at a glance.

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

Linux localhost.localdomain 2.4.20-8 #1 Thu Mar 13 17:54:28 EST 2003 i686 athlon i386 GNU/Linux

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

Linux version 2.4.20-8 ([email protected])
 (gcc version 3.2.2 20030222 (Red Hat Linux 3.2.2-5)) #1 Thu Mar 13 17:54:28 EST 2003

3. # cat /etc/issue or cat /etc/redhat-release (Linux to view the current operating system release information)

Red Hat Linux release 9 (Shrike)

4. # cat /proc/cpuinfo (Linux views CPU-related information, including model, main frequency, kernel information, etc.)

  processor : 0
   vendor_id : AuthenticAMD
  CPU family: 15
  model: 1
  model name : AMD A4-3300M APU with Radeon(tm) HD Graphics
  stepping : 0
  CPU MHz: 1896.236
  cache size: 1024 KB
  fdiv_bug : no
  hlt_bug : no
  f00f_bug : no
  coma_bug : no
  fpu : yes
  fpu_exception : yes
  cpuid level : 6
  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 syscall mmxext lm 3dnowext 3dnow
  bogomips : 3774.87

5. # getconf LONG_BIT (Check the Linux version description. The current CPU is running in 32-bit mode, but it does not mean that the CPU does not support 64-bit)

[hadoop@admin01 ~]$ getconf LONG_BIT
64

6. # lsb_release -a

[root@Rocky opt]# lsb_release -a
LSB Version: :core-4.1-amd64:core-4.1-noarch
Distributor ID: CentOS
Description: CentOS Linux release 7.4.1708 (Core) 
Release: 7.4.1708
Codename: Cor

Note: The version information query in the sixth command is done on another machine. If you need to use this command to query on a local machine, you first need to install this command using yum. In order to show it vividly, I personally used the command yum install -y redhat-lsb to install it on the cluster. Because this downloads more packages, it will take a little longer.

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 6.4 (Final)
Release: 6.4
Codename: Final

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