1 ## Copyright (C) 2006-2012 John W. Eaton
3 ## This file is part of Octave.
5 ## Octave is free software; you can redistribute it and/or modify it
6 ## under the terms of the GNU General Public License as published by
7 ## the Free Software Foundation; either version 3 of the License, or (at
8 ## your option) any later version.
10 ## Octave is distributed in the hope that it will be useful, but
11 ## WITHOUT ANY WARRANTY; without even the implied warranty of
12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 ## General Public License for more details.
15 ## You should have received a copy of the GNU General Public License
16 ## along with Octave; see the file COPYING. If not, see
17 ## <http://www.gnu.org/licenses/>.
20 ## @deftypefn {Function File} {@var{val} =} ls_command ()
21 ## @deftypefnx {Function File} {@var{old_val} =} ls_command (@var{new_val})
22 ## Query or set the shell command used by Octave's @code{ls} command.
28 function old_cmd = ls_command (cmd)
30 global __ls_command__;
32 if (isempty (__ls_command__))
33 ## MinGW uses different ls_command
34 if (ispc () && ! isunix ()
35 && isempty (file_in_path (getenv ("PATH"), "ls")))
36 __ls_command__ = "dir /D";
38 __ls_command__ = "ls -C";
42 if (nargin == 0 || nargin == 1)
44 old_cmd = __ls_command__;
50 error ("ls_command: expecting argument to be a character string");
60 %! cmd = ls_command ();
61 %! assert (ischar (cmd));
62 %! if (ispc () && ! isunix ())
63 %! assert (cmd(1:3), "dir");
65 %! assert (cmd(1:2), "ls");