Download your feed data with:
@example
-$ cmd/download.sh feeds/blog.stargrave.org_russian_feed.atom
-$ ./feeds-download.zsh # to invoke parallel downloading of everything
+$ cmd/download feeds/blog.stargrave.org_russian_feed.atom
+$ ./feeds-download # to invoke parallel downloading of everything
@end example
It uses @command{curl}, that is aware of @code{If-Modified-Since} and