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From: Jacob Sparre Andersen <jacob@jacob-sparre.dk>
Newsgroups: comp.lang.ada
Subject: Re: Trying to execute a command from inside of Ada
Date: Mon, 04 Jun 2018 08:44:10 +0200
Organization: JSA Research & Innovation
Message-ID: <87a7sboxtx.fsf@jacob-sparre.dk>
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Xref: reader02.eternal-september.org comp.lang.ada:52909
Date: 2018-06-04T08:44:10+02:00
List-Id: <comp.lang.ada>

John Smith wrote:

> procedure Sys_Command is
>    Result    : Integer;
>    Arguments : Argument_List :=
>                  (  1=> new String'("bash"),
>                     2=> new String'("ls -l ~")
>                  );

Have you tried to run this on your command line?

   bash "ls -l ~"

That's basically what you ask your program to do.

I would:

1) Avoid involving Bash in this.
2) Remember to pass each argument separately.

And I might additionally:

3) Expand "~" myself, as "ls" doesn't know how to do that (but
   "system()" or "/bin/sh" might).

Greetings,

Jacob
-- 
"Universities are not part of the nation's security organisation,
 they are not the nation's research laboratory either: they are
 the nation's universities."                     -- E.W. Dijkstra