Let's say you're working on the terminal and want to display current's directory hierarchy in a tree structure, like this:
$ tree.sh .kde/share/apps/krita/
/home/wilson/.kde/share/apps/krita
.
|-paintoppresets
|-templates
|---CMYK
|---Ink
|---WS
|-workspaces
I found the command below on the web and its author even provided it as a shell script to use it easily.
ls -R | grep ":$" | sed -e 's/:$//' -e 's/[^-][^\/]*\//--/g' -e 's/^/ /' -e 's/-/|/'
Install system wide
Open a terminal window and run:
dst="/usr/local/bin/tree.sh" && sudo wget http://goo.gl/z8exN -O $dst && sudo chmod +x $dst
Install for current user
This will install the script for your user only and assumes you have a bin directory on your home directory and it has been added to $PATH. Open a terminal window and run:
dst="$HOME/bin/tree.sh" && wget http://goo.gl/z8exN -O $dst && chmod +x $dst