in reply to Re: why IPC::Open3 can't execute MS-DOS "dir" command?in thread why IPC::Open3 can't execute MS-DOS "dir" command?
system mentions usage of the shell only for the case when there is a shell meta character in the command.
perlport mentions that there might be commands which are invokable but don't exists as files, but doesn't mention that perl makes extra effort to makes them invocable.
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