/* The NT cmd.exe shell has the following peculiarity that needs to be
       * worked around.  It strips a leading and trailing dquote when any
       * of the following is true:
       *    1. the /S switch was used
       *    2. there are more than two dquotes
       *    3. there is a special character from this set: &<>()@^|

       *    4. no whitespace characters within the two dquotes
       *    5. string between two dquotes isn't an executable file
       * To work around this, we always add a leading and trailing dquote
       * to the string, if the first argument is either "cmd.exe" or "cmd",
       * and there were at least two or more arguments passed to cmd.exe
       * (not including switches).
       * XXX the above rules (from "cmd /?") don't seem to be applied
       * always, making for the convolutions below :-(
       */
  

##</code><code>##

  [ 12747] By: gsar                                  on 2001/10/28  18:33:23
          Log: finishing touches to system() fixes on windows:
               * detect cmd shell correctly even if it had full path in it
               * more quoting needed for single-arg system if the argument
               really had multiple quoted arguments within it
               * be smarter about not calling the shell when the executable
               has spaces, but otherwise does not need shell involvement
               * add a testsuite (windows-specific currently)
  

##</code><code>##

 my $cmd="\"C:\\progra~1\\accessories\\echo_arg.pl\" -fmt \"%[owner]p\" vob:.";
 
 print "$cmd\n";
 print `$cmd`;
 

##</code><code>##

 >perl test.pl
 "C:\progra~1\accessories\echo_arg.pl" -fmt "%[owner]p" vob:.
 C:\progra~1\accessories\echo_arg.pl
 -fmt
 %[owner]p
 vob:.
 

##</code><code>##

 
 >C:\progra~1\perl560_623\bin\perl test.pl
 "C:\progra~1\accessories\echo_arg.pl" -fmt "%[owner]p" vob:.
 'C:\progra~1\accessories\echo_arg.pl" -fmt "%[owner]p' is not recognized as an internal or external command, operable program or batch file.