in reply to IPC::Run on Windows, path separator

Its invoking the shell, so I don't think its a bug, but I'm not sure what IPC::Run promises 

$ cat _testdir_\_test_.bat
@echo %date% %time%

$ cat runit.pl


use IPC::Run;
IPC::Run::run(['_testdir_/_test_.bat']);
IPC::Run::run(['_testdir_\\_test_.bat']) ;

$ perl runit.pl
'_testdir_' is not recognized as an internal or external command,
operable program or batch file.
Thu 05/27/2010  6:47:20.93

$ _testdir_\_test_.bat
Thu 05/27/2010  6:47:27.87

$ _testdir_/_test_.bat
'_testdir_' is not recognized as an internal or external command,
operable program or batch file.

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Re^2: IPC::Run on Windows, path separator
by rovf (Priest) on May 27, 2010 at 14:14 UTC
    Its invoking the shell
    I would not expect that it does. From the perldocs: 

           # Launch a sub process directly, no shell.  Can't do redirectio
+n
       # with this form, it's here to behave like system() with an
       # inverted result.
          $r = run "cat a b c" ;

    [download]
    So this example explicitly says no shell.

    -- 
    Ronald Fischer <ynnor@mm.st>
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[d/l]
      system calls the shell when it's documented not to in Windows. According to the documentation, perl -e"system('dir')" and perl -e"system('foo.bat')" should fail, yet both work. This might be documented in perlport.
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[d/l]
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        Please call for the documentation to change, not the implementation. It's a few little details like this that make perl usable on windows.

[reply]
        Indeed! OTOH, IPC::Run::run(['echo xxx']) fails....

        -- 
        Ronald Fischer <ynnor@mm.st>
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[d/l]
[select]
      You're giving it a batch file, and only the shell runs batch files, so both the following lines work for me 
      IPC::Run::run(['C:/perl/5.10.1/bin/MSWin32-x86-multi-thread/perl.EXE',
+ qw! -e die(666) !]) ;
IPC::Run::run(['C:\perl\5.10.1\bin\MSWin32-x86-multi-thread\perl.EXE',
+ qw! -e die(666) !]) ;

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[d/l]
        Good point! Thanks a lot!

        -- 
        Ronald Fischer <ynnor@mm.st>
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Re^2: IPC::Run on Windows, path separator (abs)
by tye (Sage) on May 28, 2010 at 01:54 UTC

    Interesting which cases work: 

    C:\>c:/windows/explorer

C:\>/windows/explorer

C:\>windows/explorer
'windows' is not recognized as an internal or external command,
operable program or batch file.

C:\>

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    - tye        

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[d/l]
      Quotes almost always prevent the "/" from being treated as an option prefix. 
      C:\>"windows/explorer"

C:\>

      [download]
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[d/l]

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