a tree command using Shell Script that displays all the directories recursively

[BashBedlam]

Here's one that's pretty close.

#!/usr/bin/env bash

# bash script to generate tree structure of a directory
# Pravendra Singh : https://pravj.github.io

pwd=$(pwd)
find $pwd -print | sed -e "s;$pwd;\.;g;s;[^/]*\/;|__;g;s;__|; |;g"