GETTING STARTED WITH ASSIST (1) The Correct Path ASSIST may have been installed in a non-traditional directory. Such a capability is supported so that users can build and access ASSIST without the need of system manager support. If this has been done at your site, please ensure that you have placed the bin directory containing ASSIST and related programs in your path. Normally, this is done by adding that directory to the 'path' environment variable in the .cshrc file (csh and tcsh users) or your PATH environment variable in the .profile file (sh users -- who are you!?). (2) Define Environment Variables The 'UPARM' environment variable must be defined to point to a directory into which parameter files can be written. Normally, UPARM is added to a user's .login file: setenv UPARM For IRAF users, set UPARM to the IRAF uparm directory. For example, if the user freddy has her uparm directory as a subdirectory of Iraf: setenv UPARM /home/freddy/Iraf/uparm/ Users of the SAO IRAF-compatible parameter interface can set UPARM to one of the writable $PFILES directories. Other users can create a new directory (or use an existing one). If you are using IRAF through ASSIST, you also must ensure that the 'iraf' and 'IRAFARCH' environment variables are set. 'iraf' points to the IRAF installation directory (e.g. /usr/iraf/), while 'IRAFARCH' is the architecture type (e.g. sparc). At many sites (e.g. SAO and NOAO), these are set automatically at login time or are set by special scripts before running the IRAF cl. If this is not the case at your site, ask your system manager or IRAF installer to help you determine the proper values for these variables. As with 'UPARM', it is customary to set them in your .login file. Note that a trailing "/" is required for both 'UPARM' and 'iraf'. (3) Start Up ASSIST The assist system is started up using the assist script: assist [command options] Command options are documented in the ASSIST help tree. (4) A Note To IRAF Users To bring up IRAF when the ASSIST is started: assist -iraf This will start ncl in an xterm and display the top level IRAF tree. If -iraf is not specified on the command line, you can start IRAF from ASSIST. IRAF 2.10.3 supports xgterm, a version of xterm that uses the NOAO widget server. If you wish to run xgterm, use: assist -iraf -nclxterm xgterm