Function: show_progress

Simple bash script that displys current progress in a script, through a progress bar and displays percentage of task completed completed.

Inputs: 
1 - Current_Task
2 - Total_Tasks
3 - Done_Symbol
4 - Todo_Symbol

Example usage:
show_progress 1 5 / _
sleep 2
show_progress 2 5 / _
sleep 2
show_progress 3 5 / _
sleep 2
show_progress 4 5 / _
sleep 2
show_progress 5 5 / _

Example Outputs:
Progress : [/////////////////////////////////////////////////_____________________________]60%
Progress : [//////////////////////////////////////////////////////////////////////////////]100%

Function: set_scroll

set the region of the terminal that will scroll and were shall be static / seperate

Inputs:
1 - End_Rows (How many rows to leave at the ned of the scroll region)

Example usage:
set_scroll 2

Example Output: (Note the spacing of the final line and the bash input)
bash$ 

[////////////////////////////////////////////////////]100%

Function: move_cursor_line

move the cursor to a specific terinal row

Inputs:
1 - Line_To_Move_To

Example usage:

move_cursor_line 1