#!/usr/bin/env bash

#this script calls for three variables to be passed to it, a directory, an indent amount, and a file for output. 

script_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
script_name=$(basename "$0")
path_to_script=$script_dir/$script_name

new_indent="$indent    " #this increases the indent amount for the next recursion
new_start_dir="$start_dir/$directoryname" #this sets the next directory
$("$path_to_script" "$new_start_dir" "$new_indent" "$outfile") #this actually calls the same 
                                                               #script with the updated parameters

This snippet determines the path and script name that will need to be called, and then calls that script and passes it parameters.

recursively call bash script from any directory

Bash

Bash