- <arg>update</arg>
- <arg>upgrade</arg>
- <arg>dselect-upgrade</arg>
- <arg>install <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
- <arg>remove <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
- <arg>source <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
- <arg>build-dep <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
- <arg>check</arg>
- <arg>clean</arg>
- <arg>autoclean</arg>
- <arg>autoremove</arg>
+ <arg choice='plain'>update</arg>
+ <arg choice='plain'>upgrade</arg>
+ <arg choice='plain'>dselect-upgrade</arg>
+ <arg choice='plain'>install
+ <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable>
+ <arg>
+ <group choice='req'>
+ <arg choice='plain'>
+ =<replaceable>pkg_version_number</replaceable>
+ </arg>
+ <arg choice='plain'>
+ /<replaceable>target_release_name</replaceable>
+ </arg>
+ </group>
+ </arg>
+ </arg>
+ </arg>
+ <arg choice='plain'>remove <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
+ <arg choice='plain'>purge <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
+ <arg choice='plain'>source
+ <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable>
+ <arg>
+ =<replaceable>pkg_version_number</replaceable>
+ </arg>
+ </arg>
+ </arg>
+ <arg choice='plain'>build-dep <arg choice="plain" rep="repeat"><replaceable>pkg</replaceable></arg></arg>
+ <arg choice='plain'>check</arg>
+ <arg choice='plain'>clean</arg>
+ <arg choice='plain'>autoclean</arg>
+ <arg choice='plain'>autoremove</arg>
+ <arg choice='plain'>
+ <group choice='req'>
+ <arg choice='plain'>-h</arg>
+ <arg choice='plain'>--help</arg>
+ </group>
+ </arg>