[fpc-pascal] How to execute a command line

[Felipe Monteiro de Carvalho]

Hello,

I was asking myself how to execute a command line, so I went to use
Unix.shell, but now it seams to be deprecated.

What should I be using instead?

Not TProcess, because I don't know the exact path of what I am
calling, I would like to use something in the path.

I also need something that works on all OSes (yes, I know that UNIX
unit wouldn't).

-- 
Felipe Monteiro de Carvalho