linux怎么看系统版本
通用方法查看：
1、uname －a （linux查看版本当前操作系统内核信息）
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查看当前操作系统版本信息）
Linux version 2.4.20-8 (bhcompile@porky.devel.redhat.com) (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
Red Hat Enterprise Linux AS release 4 (Nahant Update 8) Kernel /r on an /m
RedHat系列查看：
1、cat /etc/redhat-release
Red Hat Enterprise Linux AS release 4 (Nahant Update 8)
2、lsb_release -a
LSB Version: :core-3.0-ia32:core-3.0-noarch:graphics-3.0-ia32:graphics-3.0-noarch Distributor ID: RedHatEnterpriseAS Description: Red Hat Enterprise Linux AS release 4 (Nahant Update 8) Release: 4 Codename: NahantUpdate8
Debian系列查看：
1、cat /etc/debian_version
9.0
2、cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 9 (stretch)" NAME="Debian GNU/Linux" VERSION_ID="9" VERSION="9 (stretch)" ID=debian HOME_URL="https://www.debian.org/" SUPPORT_URL="https://www.debian.org/support" BUG_REPORT_URL="https://bugs.debian.org/"
3、hostnamectl
Static hostname: debian Icon name: computer-vm Chassis: vm Machine ID: 6866ec1d654b4a2ea52d591dc0146d82 Boot ID: 51bfbc1e197b4d378e95073da0df0288 Virtualization: xen Operating System: Debian GNU/Linux 9 (stretch) Kernel: Linux 4.9.0-1-amd64 Architecture: x86-64
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