-doxygen "${DOXYCONF}" | tee doxygen.out
-echo "$OUTDIR: $(awk '/Preprocessing/ {printf("%s ", substr($2, 1, length($2) - 3))}' doxygen.out)" > $OUTDIR.d
+doxygen "${DOXYCONF}" > $OUT_FILE
+echo "$OUTDIR: $(awk '/Preprocessing/ {printf("%s ", substr($2, 1, length($2) - 3))}' $OUT_FILE)" > $OUTDIR.d