When reading a man page, especially a classic man page like the ps man page or maybe a system call man page like sigaction, I try to keep in mind that the infor

When reading a man page, especially a classic man page like the ps man page or maybe a system call man page like sigaction, I try to keep in mind that the information is there but may require careful study. Good man pages are a often quite terse, requiring attentive reading. I like using man the best, but there are two other methods that command-line programs can use to provide documentation, GNU's info and built in help (triggered by -h or --help on command-line). GNU's info works better than man for more complex documentation--its practically a curses based e-book reader. For a taste of using info based documentation, try info spell on the command line to see the documentation for the aspell command. Info is even used as the internal help documentation for Emacs, reachable from inside of Emacs (via "Cntl-h i", naturally). I think rsync has too many facets for a man page and would benefit from having a longer info file that could explain the many use cases for rsync.