There's no such thing as an "exclusive append".

Both programs will have the file open for append. If both programs write to them, there's no garantee you end up with something that isn't garbage - some OSses will do a seek() before a write(), and a flush() after a write(), if your writes() are small enough, the messages won't be garbled.

If you want to have exclusive access, flock() your handles.

Perl --((8:>*

In reply to Re: Exclusive open for append by Perl Mouse
in thread Exclusive open for append by gri6507

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