-cran2deb update > ~/c2d/build_results_${DATE}/log.txt
-cran2deb autobuild >> ~/c2d/build_results_${DATE}/log.txt
-find ~/cran2deb/cache/results/debian-amd64 -type f -print0 |xargs -0r mv -t ~/c2d/build_results_${DATE}/
+# update the packages we can build
+cran2deb update > ~/c2d/build_results_${DATE}/log.txt 2>&1
+# build tehm
+cran2deb autobuild >> ~/c2d/build_results_${DATE}/log.txt 2>&1
+# move them to a folder so we can sign and upload them
+find ~/c2d/cache/results/debian-amd64 -type f -print0 | \
+ xargs -0r mv -t ~/c2d/build_results_${DATE}/
+# backup database
+cp ~/c2d/cache/cran2deb.db ~/c2d/cache/cran2deb_${DATE}.db