Hadoop(day01) -- Tomcat(Linux), Jdk(Linux) (), JVM

(First: VMWARE-LINUX(CENTOS/6.5/6.6)) 一.Jdk: 1.Delete old jdk: 2.add tomcat.tar.jar.gz: 3.tar and mv: 4.configure environment variables: (the bottom line) export JAVA_HOME=/usr/java export JRE_HOME=/u

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