If you're saying it's exiting immediately after that open, I don't believe you. Did you perhaps trace the code by printing to STDOUT?

I find it very unlikely that you have permission to create and write to /temp.txt (and that you intended to do so). Are you running as root?

In reply to Re^3: Perl daemon exiting without warning by ikegami
in thread Perl daemon exiting without warning by sktemkar

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