大数据Hadoop快速入门
# ll /usr/lib/jvm/total 12
lrwxrwxrwx. 1 root root 26 Oct 27 22:48 java -> /etc/alternatives/java_sdk
lrwxrwxrwx. 1 root root 32 Oct 27 22:48 java-1.6.0 -> /etc/alternatives/java_sdk_1.6.0
drwxr-xr-x. 7 root root 4096 Oct 27 22:48 java-1.6.0-openjdk-1.6.0.34.x86_64
lrwxrwxrwx. 1 root root 34 Oct 27 22:48 java-1.6.0-openjdk.x86_64 -> java-1.6.0-openjdk-1.6.0.34.x86_64
lrwxrwxrwx. 1 root root 32 Oct 27 22:44 java-1.7.0 -> /etc/alternatives/java_sdk_1.7.0
lrwxrwxrwx. 1 root root 40 Oct 27 22:44 java-1.7.0-openjdk -> /etc/alternatives/java_sdk_1.7.0_openjdk
drwxr-xr-x. 8 root root 4096 Oct 27 22:44 java-1.7.0-openjdk-1.7.0.75-2.5.4.2.el7_0.x86_64
lrwxrwxrwx. 1 root root 32 Oct 27 22:44 java-1.8.0 -> /etc/alternatives/java_sdk_1.8.0
lrwxrwxrwx. 1 root root 40 Oct 27 22:44 java-1.8.0-openjdk -> /etc/alternatives/java_sdk_1.8.0_openjdk
drwxr-xr-x. 7 root root 4096 Oct 27 22:44 java-1.8.0-openjdk-1.8.0.31-2.b13.el7.x86_64
lrwxrwxrwx. 1 root root 34 Oct 27 22:48 java-openjdk -> /etc/alternatives/java_sdk_openjdk
lrwxrwxrwx. 1 root root 21 Oct 27 22:44 jre -> /etc/alternatives/jre
lrwxrwxrwx. 1 root root 27 Oct 27 22:44 jre-1.6.0 -> /etc/alternatives/jre_1.6.0
lrwxrwxrwx. 1 root root 38 Oct 27 22:44 jre-1.6.0-openjdk.x86_64 -> java-1.6.0-openjdk-1.6.0.34.x86_64/jre
lrwxrwxrwx. 1 root root 27 Oct 27 22:44 jre-1.7.0 -> /etc/alternatives/jre_1.7.0
lrwxrwxrwx. 1 root root 35 Oct 27 22:44 jre-1.7.0-openjdk -> /etc/alternatives/jre_1.7.0_openjdk
lrwxrwxrwx. 1 root root 52 Oct 27 22:44 jre-1.7.0-openjdk-1.7.0.75-2.5.4.2.el7_0.x86_64 -> java-1.7.0-openjdk-1.7.0.75-2.5.4.2.el7_0.x86_64/jre
lrwxrwxrwx. 1 root root 27 Oct 27 22:44 jre-1.8.0 -> /etc/alternatives/jre_1.8.0
lrwxrwxrwx. 1 root root 35 Oct 27 22:44 jre-1.8.0-openjdk -> /etc/alternatives/jre_1.8.0_openjdk
lrwxrwxrwx. 1 root root 48 Oct 27 22:44 jre-1.8.0-openjdk-1.8.0.31-2.b13.el7.x86_64 -> java-1.8.0-openjdk-1.8.0.31-2.b13.el7.x86_64/jre
lrwxrwxrwx. 1 root root 29 Oct 27 22:44 jre-openjdk -> /etc/alternatives/jre_openjdk
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