linux查找软件安装在哪里
1、解决问题
linux直接下载安装的软件，找不到文件安装目录
2、java为例子
root@ae83eef571af:/usr/local/hadoop/etc/hadoop# which java
/usr/bin/java
root@ae83eef571af:/usr/local/hadoop/etc/hadoop# ls -l /usr/bin/java
lrwxrwxrwx 1 root root 22 Jun 21 17:06 /usr/bin/java -> /etc/alternatives/java
root@ae83eef571af:/usr/local/hadoop/etc/hadoop# ls /etc/alternatives/java
/etc/alternatives/java
root@ae83eef571af:/usr/local/hadoop/etc/hadoop# ls -l /etc/alternatives/java
lrwxrwxrwx 1 root root 46 Jun 21 17:06 /etc/alternatives/java -> /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
root@ae83eef571af:/usr/local/hadoop/etc/hadoop# ls -l /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
-rwxr-xr-x 1 root root 14632 May 30 14:03 /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
root@ae83eef571af:/usr/local/hadoop/etc/hadoop#
3、总结
使用 whichi java找到的路径不是最终安装路径，可能是个引用路径，使用ls -l 命令可以显示出，l开头代表引用，-开头才是文件或者目录，可能有多层引用，直到-开头的就是java软件真是安装的路径
