Linux基础环境
原则
JAVA
mkdir /app/java && cd /app/java[root@VM-8-17-centos java]# ll total 681292 -rw-r--r-- 1 root root 169022667 Mar 11 17:15 jdk-11.0.25_linux-x64_bin.tar.gz -rw-r--r-- 1 root root 182840393 Mar 11 17:15 jdk-17.0.13_linux-x64_bin.tar.gz -rw-r--r-- 1 root root 197405999 Mar 11 17:14 jdk-21_linux-x64_bin.tar.gz -rw-r--r-- 1 root root 148362647 Mar 11 17:13 jdk-8u431-linux-x64.tar.gztar -zxvf jdk-21_linux-x64_bin.tar.gzvim /etc/profile#set jdk envirment export JAVA_HOME=/app/java/jdk-21.0.6 export JRE_HOME=$JAVA_HOME/jre export CLASSPATH=$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$PATHsource /etc/profilejava -version[root@VM-8-17-centos mysql]# java -version java version "21.0.6" 2025-01-21 LTS Java(TM) SE Runtime Environment (build 21.0.6+8-LTS-188) Java HotSpot(TM) 64-Bit Server VM (build 21.0.6+8-LTS-188, mixed mode, sharing)
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