Re: why IPC::Open3 can't execute MS-DOS "dir" command?

[bingos]

Very likely because dir isn't actually a command in and of itself, but is a built-in command of cmd.exe

Change "dir * \/b\/s" to be "cmd /C dir * \/b\/s"

You also shouldn't call subroutines with the & prefix, unless you know the behaviour that implies

[Anonymous Monk]

Change "dir * \/b\/s" to be "cmd /C dir * \/b\/s"

Seems it can't work, got the following error:

Execute Command: cmd /c dir * /b/s
[ERROR] (1) : Parameter format not correct - "s"".

And if I remove the parameters "/b/s" it stopped again.