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scripts/miscellaneous/ls.m

changeset 10289: 4b124317dc38
parent:eb63fbe60fab
author: John W. Eaton <jwe@octave.org>
date: Tue Feb 09 20:58:55 2010 -0500 (42 minutes ago)
permissions: -rw-r--r--
description: base_properties::set_children: account for hidden children 
     1## Copyright (C) 2006, 2007, 2008, 2009 John W. Eaton

     2##

     3## This file is part of Octave.

     4##

     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.

     9##

    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.

    14##

    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/>.

    18

    19## -*- texinfo -*-

    20## @deffn {Command} ls options

    21## List directory contents.  For example,

    22## 

    23## @example

    24## @group

    25## ls -l

    26##      @print{} total 12

    27##      @print{} -rw-r--r--   1 jwe  users  4488 Aug 19 04:02 foo.m

    28##      @print{} -rw-r--r--   1 jwe  users  1315 Aug 17 23:14 bar.m

    29## @end group

    30## @end example

    31## 

    32## The @code{dir} and @code{ls} commands are implemented by calling your

    33## system's directory listing command, so the available options may vary

    34## from system to system.

    35## @seealso{dir, stat, readdir, glob, filesep, ls_command}

    36## @end deffn

    37

    38## Author: jwe

    39

    40function retval = ls (varargin)

    41

    42  global __ls_command__;

    43

    44  if (isempty (__ls_command__) || ! ischar (__ls_command__))

    45    ## Initialize value for __ls_command__.

    46    ls_command ();

    47  endif

    48

    49  if (iscellstr (varargin))

    50

    51    args = tilde_expand (varargin);

    52

    53    cmd = sprintf ("%s ", __ls_command__, args{:});

    54

    55    if (page_screen_output () || nargout > 0)

    56

    57      [status, output] = system (cmd);

    58

    59      if (status == 0)

    60	if (nargout == 0)

    61	  puts (output);

    62	else

    63	  retval = strvcat (regexp (output, '[^\s]+', 'match'){:});

    64	endif

    65      else

    66	error ("ls: command exited abnormally with status %d", status);

    67      endif

    68

    69    else

    70      ## Just let the output flow if the pager is off.  That way the

    71      ## output from things like "ls -R /" will show up immediately and

    72      ## we won't have to buffer all the output.

    73      system (cmd);

    74    endif

    75    

    76  else

    77    error ("ls: expecting all arguments to be character strings");

    78  endif

    79

    80endfunction

    81

    82%!error ls (1);

    83