Path: utzoo!utgpu!attcan!uunet!munnari!otc!metro!basser!mqcomp!martin
From: martin@mqcomp.oz (Martin Foord)
Newsgroups: comp.unix.wizards
Subject: exec() with executable shell scripts
Keywords: exec() sh
Message-ID: <647@mqcomp.oz>
Date: 20 Apr 89 06:37:47 GMT
Organization: Computing Discipline, Macquarie Uni, NSW, 2109, Australia
Lines: 26


Everytime I seem to exec() a shell script that is executable I have problems
(execepting if I use execlp() or execvp()).
For example, the program (where /bin/true is an executable shell script) :

% cat foo.c
#include <stdio.h>

char *arg="true";

main()
{
	char *args[2];

	args[1]=arg;
	args[2]=NULL;
	execv("/bin/true",args);
	printf("Can't execute process\n");
}
% foo
Can't execute process

	Why is this ? Is it because /bin/true is a shell script because
othere executable non-shell scripts work fine.

maf.