unexpected os.system behavior on windows NT

[Thomas Heller]

> os.system seems to malfunction when the command name and another
> argument are both quoted on the commandline.  All these commands
> run "as expected" when executed directly in a command window.

I've posted this before... There are strange rules of cmd.exe regarding
quotes, but 'cmd /?' on Win2k finally documents them.

Thomas
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If /C or /K is specified, then the remainder of the command line after
the switch is processed as a command line, where the following logic is
used to process quote (") characters:

    1.  If all of the following conditions are met, then quote characters
        on the command line are preserved:

        - no /S switch
        - exactly two quote characters
        - no special characters between the two quote characters,
          where special is one of: &<>()@^|
        - there are one or more whitespace characters between the
          the two quote characters
        - the string between the two quote characters is the name
          of an executable file.

    2.  Otherwise, old behavior is to see if the first character is
        a quote character and if so, strip the leading character and
        remove the last quote character on the command line, preserving
        any text after the last quote character.