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  • 查看linux系统版本和cpu

    cat /proc/version

    cat /etc/issue

    uname -a

    uname -r

    lsb_release -a

    cat /etc/redhat-release

    file /bin/bash

    示例:

    [root@private ~]# cat /proc/version
    Linux version 3.10.0-693.el7.x86_64 (builder@kbuilder.dev.centos.org) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-16) (GCC) ) #1 SMP Tue Aug 22 21:09:27 UTC 2017
    [root@private ~]# uname -a
    Linux private.ca.sensetime.com 3.10.0-693.el7.x86_64 #1 SMP Tue Aug 22 21:09:27 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
    [root@private ~]# uname -r
    3.10.0-693.el7.x86_64
    [root@private ~]# lsb_release -a
    -bash: lsb_release: 未找到命令
    [root@private ~]# cat /etc/issue
    S
    Kernel on an m

    [root@private ~]# cat /etc/redhat-release
    CentOS Linux release 7.4.1708 (Core)
    [root@private ~]# file /bin/bash
    /bin/bash: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=e1df4babc39e931279d37a050884e2b7b095ff39, stripped
    [root@private ~]#

    # 总核数 = 物理CPU个数 X 每颗物理CPU的核数 
    # 总逻辑CPU数 = 物理CPU个数 X 每颗物理CPU的核数 X 超线程数
    
    # 查看物理CPU个数
    cat /proc/cpuinfo| grep "physical id"| sort| uniq| wc -l
    
    # 查看每个物理CPU中core的个数(即核数)
    cat /proc/cpuinfo| grep "cpu cores"| uniq
    
    # 查看逻辑CPU的个数
    cat /proc/cpuinfo| grep "processor"| wc -l
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  • 原文地址:https://www.cnblogs.com/yangxiayi1987/p/14743956.html
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