if [ $remove_old_packages -ne 0 ]; then
zpm shell $ZPMDB "select printf('%s-%s-%s',package,version,release) from package_age where age > $retain_old" | while read pkg; do
zpm rmpackage -m 'gc removed old package' $pkg
if [ $remove_old_packages -ne 0 ]; then
zpm shell $ZPMDB "select printf('%s-%s-%s',package,version,release) from package_age where age > $retain_old" | while read pkg; do
zpm rmpackage -m 'gc removed old package' $pkg