tree

Show the contents of the current directory as a tree.

Show files and directories with a depth of 'num':

tree -L {{num}}

Show directories only:

tree -d

Show hidden files too:

tree -a

Print human readable size of files:

tree -h

Print the full path for each file:

tree -f

Print the tree without lines and indentation. Useful when used with -f:

tree -i