Using the "uses" statement in Inno Setup Code section

I am trying to use the uses statement to implement something like in the following example:

uses Process;
...
var s : ansistring;
...
if RunCommand('/bin/bash',['-c','echo $PATH'],s) then
   writeln(s);

The uses statement causes an error during compilation. Any idea why?

There's no uses statement in the Inno Setup/Pascal Script.

You can use only the functions listed in Inno Setup documentation.

To add new functions, you have two options:

• import them from a DLL like:

  procedure MyDllFunc(hWnd: Integer; lpText, lpCaption: AnsiString; uType: Cardinal);
  external 'MyDllFunc@files:MyDll.dll stdcall';
  

• include them from another file using the #include preprocessor directive.

  #include "MyFunctions.pas"
  

Anyway, to answer your real question, use the Exec function.

To collect an output of the executed command, see How to get an output of an Exec'ed program in Inno Setup?