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From: jerry@jvdsys.nextjk.stuyts.nl (Jerry van Dijk)
Subject: Re: help about execute a command
Date: 1998/08/07
Message-ID: <ExB4oC.62@jvdsys.nextjk.stuyts.nl>#1/1
X-Deja-AN: 378939249
References: <6qddcf$2mr$1@nnrp1.dejanews.com>
Organization: * JerryWare *, Leiden, Holland
Newsgroups: comp.lang.ada
Date: 1998-08-07T00:00:00+00:00
List-Id: <comp.lang.ada>

jtapasai@my-dejanews.com wrote:

: I am learning ADA 95 with gnat 3.10 under linux, and I must write a program
: that executes a command of the operating system such as ls,insmod , cp ... Is
: that possible ? Thanks in advance !

with Interfaces.C;

procedure Show is

   function System (Cmd : String) return Integer is
      function C_System (S : Interfaces.C.char_array) return Integer;
      pragma Import (C, C_System, "system");
   begin
      return C_System (Interfaces.C.To_C (Cmd));	
   end System;
   pragma Inline (System);

   Result : Integer;
begin
   Result := System ("ls");
end Show;

I notice that the last three question you asked here could all have been 
easily answered by looking in the index of an good Ada reference book. I
suggest you really should get one of those books.
My own preference is for 'Ada as a second language' by Norman Cohen.

Jerry.

-- 
-- Jerry van Dijk  | email: jdijk@acm.org
-- Leiden, Holland | member Team-Ada
-- Ada & Win32: http://stad.dsl.nl/~jvandyk