grep -v "^#" $FILE | sed '/^[ \t]*$/d' > sigusr2.in
fi
0> sigusr2.out
+kill -0 $PID 2>/dev/null
+[ $? -ne 0 ] && _exit "Operation error: missing process with pid $PID"
kill -s SIGUSR2 $PID
+
# Detect EOF and print all except that last line:
while [ -z "$(tail -1 sigusr2.out | grep ^EOF)" ]; do sleep 0.1; done
head --lines=-1 `pwd`/sigusr2.out