Dynamic Loading of External Packages with IRAF v2.15
Dynamic package loading is a new feature in v2.15 that allows for package directories created in the iraf$extern directory to be automatically defined when the CL is started.
To update packages to the latest version, use the command
% make update
The information about available packages will be updated, then a comparison of the timestamps of your installed packages with those on the repository will be made. If newer package versions are available they will be updated (along with their depencies) automatically.
Updated: 27 January 2011