You'll not be wanting open rather opendir:

opendir DIRHANDLE,EXPR

Opens a directory named EXPR for processing by readdir, telldir, seekdir, rewinddir, and closedir. Returns true if successful. DIRHANDLEs have their own namespace separate from FILEHANDLEs.

In reply to Re: Bad file descriptor by quidity
in thread Bad file descriptor by Anonymous Monk

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