To add a new syntax configuration to the terminal

I had quite a bit of trouble.

For example, if you add the mql4.vim file for MT4

1Executed as per the following site

2Add mql4.vim to the following folder

cd /usr/share/vim/vim73/syntax/

Now restart Vim.
:set filetype=mql4 Run
I get a weird error but OK.

But as it is, I have to type the above command every time.