Linux下的tree命令源码安装 tree-1.7.0

wget http://mama.indstate.edu/users/ice/tree/src/tree-1.7.0.tgz
tar zxvf tree-1.7.0.tgz
cd tree-1.7.0
make
sudo make install

tree命令的源码如下，对tree源码感兴趣的同学，enjoy！