Installing RSL in IDL

Installing RSL in IDL is a two step process.
  1. Untar it. 
        tar xf rsl_in_idl.tar
    This will create the directory rsl_in_idl containing the program files.

  2. Add the rsl_in_idl directory to IDL's search path.

    IDL uses the search path to look for the routines entered at its command prompt. To include your directory, specify its path in the IDL_PATH environment variable. For example, let's say that you installed rsl_in_idl in /home/biff/idl/. You would put one of the following two lines (depending on your shell) in your shell's startup file (.bashrc or .tcshrc, for example), or enter it at the shell's command prompt: 

        # bash or ksh:
    export IDL_PATH='<IDL_DEFAULT>:/home/biff/idl/rsl_in_idl'

    # csh or tcsh:
    setenv IDL_PATH '<IDL_DEFAULT>:/home/biff/idl/rsl_in_idl'
    Note: the string "<IDL_DEFAULT>" is used to retain the default IDL path, which includes the IDL distribution libraries.

Now, just start IDL and you're ready to use RSL in IDL.

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