$ rpm
RPM version 4.4.2
Copyright (C) 1998-2002 - Red Hat, Inc.
This program may be freely redistributed under the terms of the GNU GPL

Usage: rpm [-aKfgpWHqV] [-aKfgpWHqVcdils] [-aKfgpWHqVcdilsaKfgpWHqV]
[-aKfgpWHqVcdilsaKfgpWHqV] [-aKfgpWHqVcdilsaKfgpWHqV]
[-aKfgpWHqVcdilsaKfgpWHqVK] [-aKfgpWHqVcdilsaKfgpWHqVK]
[-aKfgpWHqVcdilsaKfgpWHqVKi] [-aKfgpWHqVcdilsaKfgpWHqVKiv]
[-aKfgpWHqVcdilsaKfgpWHqVKiv] [-aKfgpWHqVcdilsaKfgpWHqVKiv?]
[-a|--all] [-f|--file] [-g|--group]
        [-p|--package] [-W|--ftswalk] [--pkgid] [--hdrid] [--fileid]
        [--specfile] [--triggeredby] [--whatrequires] [--whatprovides]
        [--nomanifest] [-c|--configfiles] [-d|--docfiles] [--dump] [-l|--list]
        [--queryformat=QUERYFORMAT] [-s|--state] [--nomd5] [--nofiles]
        [--nodeps] [--noscript] [--comfollow] [--logical] [--nochdir]
        [--nostat] [--physical] [--seedot] [--xdev] [--whiteout]
        [--addsign] [-K|--checksig] [--delsign] [--import] [--resign]
        [--nodigest] [--nosignature] [--initdb] [--rebuilddb] [--aid]
        [--allfiles] [--allmatches] [--badreloc] [-e|--erase <package>+]
        [--excludedocs] [--excludepath=<path>] [--fileconflicts] [--force]
        [-F|--freshen <packagefile>+] [-h|--hash] [--ignorearch] [--ignoreos]
        [--ignoresize] [-i|--install] [--justdb] [--nodeps] [--nomd5]
        [--nocontexts] [--noorder] [--nosuggest] [--noscripts]
        [--notriggers] [--oldpackage] [--percent] [--prefix=<dir>]
        [--relocate=<old>=<new>] [--repackage] [--replacefiles]
        [--replacepkgs] [--test] [-U|--upgrade <packagefile>+]
        [-D|--define 'MACRO EXPR'] [-E|--eval 'EXPR'] [--macros=<FILE:...>]
        [--nodigest] [--nosignature] [--rcfile=<FILE:...>] [-r|--root ROOT]
        [--querytags] [--showrc] [--quiet] [-v|--verbose] [--version]
        [-?|--help] [--usage] [--scripts] [--setperms] [--setugids]
        [--conflicts] [--obsoletes] [--provides] [--requires] [--info]
        [--changelog] [--xml] [--triggers] [--last] [--filesbypkg]
        [--fileclass] [--filecolor] [--filecontext] [--fscontext]
        [--recontext] [--fileprovide] [--filerequire] [--redhatprovides]
        [--redhatrequires] [--buildpolicy=<policy>] [--with=<option>]
        [--without=<option>]

Let's compare to Conary:

$ conary
Conary Software Configuration Management System

Common Commands (use "conary help" for the full list)

Information Display
  config        Display the current configuration
  help          Display help information
  query/q       Query the local system database
  rblist        List the rollbacks available in the rollback stack
  repquery/rq   Query one or more Conary repositories
  showcs/scs    Display information about a changeset file
  verify        Verify software integrity on the system

Repository Access
  changeset/cs  Request a changeset from one or more Conary repositories
  commit        Commit a changeset to a Conary repository

System Modification
  emerge        Build software from source and install it on the system
  erase         Erase software from the system
  rollback      Roll back operations stored in the rollback stack
  update        Update or install software on the system
  updateall     Update all the software on the system