How to use the command line to check the system version and kernel version of Linux as well as the machine word length
This article introduces the knowledge of "how to use the command line to check the system version and kernel version of Linux as well as the machine word length". In the operation of actual cases, many people will encounter this dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!
View Linux version
1. Lsb_release-a (for all linux)
The code is as follows:
LSB Version:: base-4.0-ia32:base-4.0-noarch:core-4.0-ia32:core-4.0-noarch:graphics-4.0-ia32:graphics-4.0-noarch:printing-4.0-ia32:printing-4.0-noarch
Distributor ID: CentOS
Description: CentOS release 6.5 (Final)
Release: 6.5
Codename: Final
Note: if you prompt "- bash: lsb_release: command not found", you need to install the lsb_release command manually. Use yum install-y redhat-lsb
The following methods apply to RedHat and CentOS
The code is as follows:
# cat / etc/redhat-release
CentOS release 6.5 (Final)
Or check the system version by looking at the package name
Redhat execution:
The code is as follows:
# rpm-Q redhat-release
Centos execution
The code is as follows:
# rpm-Q centos-release
Centos-release-6-5.el6.centos.11.2.i686
Check the linux kernel version:
1. Uname-a
The code is as follows:
Linux default.hostname 2.6.32-042stab094.8 # 1 SMP Tue Dec 16 20:36:56 MSK 2014 i686 i686 i386 GNU/Linux
Or directly use the-r parameter
The code is as follows:
Uname-r
2.6.32-042stab094.8
2. Cat / proc/version
The code is as follows:
Linux version 2.6.32-042stab094.8 (root@kbuild-rh7-x64) (gcc version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC)) # 1 SMP Tue Dec 16 20:36:56 MSK 2014
Check the number of system digits (view machine word length)
1.。 Check to see if there is a / lib64 directory. 64-bit systems will have / lib64 and / lib directories, and 32-bit systems will have only / lib
The code is as follows:
# cd / | ls
2.getconf LONG_BIT
The code is as follows:
thirty-two
3.file / bin/ls view basic program binary information
The code is as follows:
/ bin/ls: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped
Note: if you don't have the file command, install the file command using yum install file.
View system detailed parameter information
The code is as follows:
Getconf-a
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