写 shell 脚本的时候想根据系统版本来做条件判断,所以这篇就是这里搬那里搬,当做记录了
获取内核信息
[root@poloyy ~]# cat /proc/version
Linux version 4.18.0-240.22.1.el8_3.x86_64 (mockbuild@kbuilder.bsys.centos.org) (gcc version 8.3.1 20191121 (Red Hat 8.3.1-5) (GCC)) #1 SMP Thu Apr 8 19:01:30 UTC 2021
获取内核信息
[root@poloyy ~]# uname -a
Linux poloyy 4.18.0-240.22.1.el8_3.x86_64 #1 SMP Thu Apr 8 19:01:30 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
[root@poloyy ~]# lsb_release -a
LSB Version: :core-4.1-amd64:core-4.1-noarch
Distributor ID: CentOS
Description: CentOS Linux release 8.3.2011Release: 8.3.2011Codename: n/a
获取系统信息
[root@poloyy ~]# cat /etc/os-release
NAME="CentOS Linux"VERSION="8"ID="centos"ID_LIKE="rhel fedora"VERSION_ID="8"PLATFORM_ID="platform:el8"PRETTY_NAME="CentOS Linux 8"ANSI_COLOR="0;31"CPE_NAME="cpe:/o:centos:centos:8"HOME_URL="https://centos.org/"BUG_REPORT_URL="https://bugs.centos.org/"CENTOS_MANTISBT_PROJECT="CentOS-8"CENTOS_MANTISBT_PROJECT_VERSION="8"
仅适用于 Redhat 系的 Linux
[root@poloyy ~]# cat /etc/redhat-release
CentOS Linux release 8.3.2011
获取系统信息
[root@poloyy ~]# hostnamectl
Static hostname: poloyy
Icon name: computer-vm
Chassis: vm
Machine ID: 20200519114807021642997698320941Boot ID: da0aa5943375449c8bdb8bdd63e162f3
Virtualization: kvm
Operating System: CentOS Linux 8CPE OS Name: cpe:/o:centos:centos:8Kernel: Linux 4.18.0-240.22.1.el8_3.x86_64
Architecture: x86-64
sudo cat /etc/redhat-release|sed -r 's/.* ([0-9]+)\..*/\1/'
有些系统会没有 lsb_release 命令
lsb_release -a|grep -e Release|awk -F ":" '{ print $2 }' | awk -F "." '{print $1}' | sed 's/[[:space:]]//g'
有空再对每个命令展开详解吧
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原文链接 : https://www.cnblogs.com/poloyy/p/15489803.html
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