Chapter 8. UNIX Support Guide 1818.4.2.2. Updating From the Command LineLike the website, command line use of the Red Hat Update Agent is affected by the lim-itations of UNIX package management. That said, most core functions can still be accom-plished through the up2date command. The most significant difference is the absence ofall options regarding source files. Refer to Table 8-1 for the precise list of options availablefor UNIX systems.The command line version of the Red Hat Update Agent accepts the following argumentson UNIX systems:Argument Description--version Show program version information.-h, --help Show this help message and exit.-v, --verbose Show additional output.-l, --list List the latest versions of all packages installed.-p, --packages Update packages associated with this SystemProfile.--hardware Update this system’s hardware profile on RHN.--showall List all packages available for download.--show-available List all the packages available that are not currentlyinstalled.--show-orphans List all the packages currently installed that are notin channels the system is subscribed to.--show-channels Show the channel names along with the packagenames where appropriate.--installall Install all available packages. Use with--channel.--get Fetch the package specified without resolvingdependencies.Table 8-1. Update Agent Command Line Arguments8.5. Remote CommandsWith UNIX support, RHN offers the flexibility of issuing remote commands on client