如何查看centos 版本與java 版本

查看centos 版本

1. [server@dv02 etc]$ cat /etc/redhat-release

CentOS Linux release 7.6.1810 (Core)

2. [server@dv02 etc]$ cat /proc/version

Linux version 3.10.0-957.5.1.el7.x86_64 (mockbuild@kbuilder.bsys.centos.org) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-36) (GCC) ) #1 SMP Fri Feb 1 14:54:57 UTC 2019

3. [server@dv02 etc]$ uname

Linux

[anue@dv102 etc]$ uname -r

3.10.0-957.5.1.el7.x86_64

[server@dv02 etc]$ uname -a

Linux dv102 3.10.0-957.5.1.el7.x86_64 #1 SMP Fri Feb 1 14:54:57 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

4.[server@dv02 etc]$ rpm -q centos-release

centos-release-7-6.1810.2.el7.centos.x86_64

查看java 版本

1. [server@dv02 etc]$ java -version

openjdk version "11.0.1" 2018-10-16 LTS

OpenJDK Runtime Environment 18.9 (build 11.0.1+13-LTS)

OpenJDK 64-Bit Server VM 18.9 (build 11.0.1+13-LTS, mixed mode, sharing)

2. [server@dv02 etc]$ which java

/usr/bin/java

3. [server@dv02 etc]$ echo $PATH

/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/home/anue/.local/bin:/home/anue/bin