--- a
+++ b/unix.m
@@ -0,0 +1,32 @@
+## Copyright (C) 2001 Laurent Mazet
+##
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+## function [status, result] = unix (command)
+##
+## Execute unix command and return status and standard output.
+##
+## command: command string
+##
+## status: command's status
+## result: standard ouput.
+
+## Jan 31, 2001 LSM
+
+function [status, result] = unix (command)
+
+  [result, status] = system (command);
+
+endfunction