join = 'Retrieve a file backed up using "bup split"',
ls = 'Browse the files in your backup sets',
midx = 'Index objects to speed up future backups',
+ on = 'Backup a remote machine to the local one',
save = 'Save files into a backup set (note: run "bup index" first)',
split = 'Split a single file into its own backup set',
web = 'Launch a web server to examine backup sets',