I'm a big fan of Mou. However I find that I almost always want to use it while at the terminal. Especially since I started using autojump. We have two options here, creating an alias or writing a script. I prefer the first because I already have a huge number of aliases in my ~/.zshrc file and don't have to chmod anything.
Using an alias
Add the following line to your .zshrc, .bashrc or .profile file.
alias mou="open -a Mou.app"
Using a script file
Create a file names mou in your /usr/local/bin (or any other path that is exported in $PATH) with the following content:
#! /bin/sh
open -a Mou.app "$@"
After the file is created add execution rights via:
chmod +x /usr/local/bin/mou
Open it
Now you can just do:
mou [file.md]