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From: wecker@cookie.dec.com (DAVE  TANSTAAFL  WECKER)
Newsgroups: comp.sys.amiga
Subject: Patch for Matts SHELL
Message-ID: <6801@decwrl.DEC.COM>
Date: Sun, 7-Dec-86 22:35:24 EST
Article-I.D.: decwrl.6801
Posted: Sun Dec  7 22:35:24 1986
Date-Received: Mon, 8-Dec-86 02:08:39 EST
Sender: daemon@decwrl.DEC.COM
Organization: Digital Equipment Corporation
Lines: 47

I found a need to invoke Matt's shell to execute a single command line and
then exit (I also found some REAL bizarreness in AmigaDOS (posted in a
separate note)) so that I could use his shell from MAKE files.

For example, I want to be able to access all of the SHELL built-in commands
without having to keep copies in c: (like copy, delete, rename ....).
Here is a fragment from one of my MAKE files:

foo :	$(OBJS)
	shell -c copy df0:lib/c.lib ram:
	ln -v -o foo foo.o -lc
	shell -c ram:c.lib

The new 'feature' is the addition of the '-c' switch with says take all
remaining arguments as a command line, execute it, and exit. You can even
invoke scripts before the -c:

	shell .login -c echo test1 ; date ; echo test2

The patch was so easy, I figured it would be useful to post it directly.
Change the first 'for' loop in main.c (that scans for command line
source files) to be:

==============================altered code==============================
   for (i = 1; i < argc; ++i) {
      if (argv[i][0] == '-' && argv[i][1] == 'c') {
	    Inline[0] = ' ';
	    Inline[1] = '\000';
	    while (++i < argc) {
		strcat(Inline,argv[i]);
		strcat(Inline," ");
		}
	    exec_command(Inline);
	    main_exit(0);
	    }
      strcpy (Inline, "source ");
      strcat (Inline, argv[i]);
      av[1] = argv[i];
      do_source (Inline);
   }
=========================================================================

That's it... I've been using it all day and it seems to work like a charm.

dave	{decwrl|decvax|decuac}!cookie.dec.com!wecker

	(Arpa: wecker%cookie.dec.com@decwrl.dec.com)