As ikegami has already toll you, reopen STDIN/STDOUT/STDERR to /dev/null.

Though, until you get your program working right, it would be probably better to redirect STDOUT/STDERR to some file you can read (i.e. /tmp/out).

In reply to Re^3: Can't close STDIN/STDOUT/STDERR by salva
in thread Can't close STDIN/STDOUT/STDERR by brp4h

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