if diff -q $tmpf $BASH_SOURCE; then
echo "$0: found newer version on host $source. reexecing"
install -T $tmpf /usr/local/bin/btrbk-run
if diff -q $tmpf $BASH_SOURCE; then
echo "$0: found newer version on host $source. reexecing"
install -T $tmpf /usr/local/bin/btrbk-run