查看hadoop二进制文件路径
$ which hadoop
/usr/local/bin/hadoop
查看hadoop二进制文件链接路径
ls -l|grep 'hadoop'
lrwxr-xr-x 1 admin admin 45 11 8 13:52 container-executor -> ../Cellar/hadoop/3.1.1/bin/container-executor
lrwxr-xr-x 1 admin admin 33 11 8 13:52 hadoop -> ../Cellar/hadoop/3.1.1/bin/hadoop
lrwxr-xr-x 1 admin admin 31 11 8 13:52 hdfs -> ../Cellar/hadoop/3.1.1/bin/hdfs
lrwxr-xr-x 1 admin admin 33 11 8 13:52 mapred -> ../Cellar/hadoop/3.1.1/bin/mapred
lrwxr-xr-x 1 admin admin 50 11 8 13:52 test-container-executor -> ../Cellar/hadoop/3.1.1/bin/test-container-executor
lrwxr-xr-x 1 admin admin 31 11 8 13:52 yarn -> ../Cellar/hadoop/3.1.1/bin/yarn
由此可知，hadoop安装目录为/usr/local/Cellar/hadoop/3.1.1
而core-site.xml、hdfs-site.xml等配置文件的存放目录为
/usr/local/Cellar/hadoop/3.1.1/libexec/etc/hadoop
