LIST /TOC

        LAS\LIST [IN|OUT] /TOC [Attr1 Attr2 ... AttrN] [/VARIABLE VarName]

    LIST /TOC displays the Table Of Contents of the current index, or of the
    input  (LIST  IN)  or output file (LIST OUT). A summary of the different
    values of each attribute is made, plus a final summary of all the combi-
    nations (setups). The attributes can be:
        - SOURCE
        - LINE
        - TELESCOPE
        - OFF1
        - OFF2
        - ENTRY
        - NUMBER
        - BLOCK
        - VERSION
        - KIND
        - QUALITY
        - OBSERVED
        - SCAN
        - SUBSCAN
    The  following  attributes are more relevant in the context of continuum
    drifts:
        - DRIFT (compatible continuum drift position angles i.e. same  angle
                modulo 180 degrees within tolerance)
        - DIRECTION (identical continuum drift position angles i.e. same an-
                gle modulo 360 degrees within tolerance)
        - FESB (based on telescope name but only same frontend+sideband)
        - FRONTEND (based on telescope name but only same frontend)

    By default, SOURCE, LINE and TELESCOPE are used.

    The table of contents is also saved in  a  SIC,  user-defined  structure
    thanks  to  the  option  /VARIABLE (default is TOC%). The content of the
    structure is updated after each call to the command LIST /TOC. One  must
    take  care  that subsequent calls to FIND can lead to values in TOC% in-
    consistant with the current index.