A pure awk emoji formatter.
Put fmj somewhere on your $PATH. I keep tools like this in ~/.bin:
$ git clone https://github.com/ecmendenhall/fmj
$ mv fmj/fmj ~/.bin
fmj is a Unix filter. Give it
text containing emoji shortcodes on STDIN
and it replaces them with the corresponding unicode characters:
$ echo :joy_cat: | fmj
If there is no input on STDIN, fmj reads from a file. Try, e.g.
$ fmj they_hatin
in this project directory.