OT help with midi2ly on command line mac os blind user

[Daniel Contreras]

Hello all, 

I am trying to wrap my head around this whole command line terminal. I am attempting to follow the steps that are listed on the “Mac OS” section on the lilypond website. I ,think, I have followed each step correctly through step 4, which is to make the file executable. I am confused as to what step 5 is talking about. It is the following: 

1. Now, add this directory to your path. Modify (or create) a file called .profile in your home directory such that it contains

   export PATH=$PATH:~/bin
   

   This file should end with a blank line. 
   
   
   I guess my questions are the following: 
   How will these steps help me in using midi2ly?
   Also, can anyone give me an example of what to type in the terminal to convert a midi file to lilypond format? 
   
   
   Thanks for any answers and/or suggestions. I apologize for the long off-topic email. Daniel, 
   Also, ha I don’t know why my computer is putting 1’s at the beginning of each line.