; DOCRT
;---------------------------------------------------------------
;! selects printer display or CRT display (giving width)
;# ADVERB PLOT
;-----------------------------------------------------------------------
;;  Copyright (C) 1995, 1999, 2004, 2020
;;  Associated Universities, Inc. Washington DC, USA.
;;
;;  This program is free software; you can redistribute it and/or
;;  modify it under the terms of the GNU General Public License as
;;  published by the Free Software Foundation; either version 2 of
;;  the License, or (at your option) any later version.
;;
;;  This program is distributed in the hope that it will be useful,
;;  but WITHOUT ANY WARRANTY; without even the implied warranty of
;;  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;  GNU General Public License for more details.
;;
;;  You should have received a copy of the GNU General Public
;;  License along with this program; if not, write to the Free
;;  Software Foundation, Inc., 675 Massachusetts Ave, Cambridge,
;;  MA 02139, USA.
;;
;;  Correspondence concerning AIPS should be addressed as follows:
;;         Internet email: aipsmail@nrao.edu.
;;         Postal address: AIPS Project Office
;;                         National Radio Astronomy Observatory
;;                         520 Edgemont Road
;;                         Charlottesville, VA 22903-2475 USA
;-----------------------------------------------------------------------
DOCRT     LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
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DOCRT
Type: Adverb  (Logical,  > 0  =>  true)
Use:  True (1) means print to the terminal (user CRT).
      False (-1) means print to regular output device (usually
      the printer).
      In most tasks which use this parameter, setting DOCRT to true
      makes the task "interactive."  This means that the task will not
      resume AIPS until it has finished its print portions.  It also
      means that it will ask the user if he wishes to continue every
      time the CRT screen has been filled.  To terminate the printing
      (and perhaps the task), enter "Q" or "q" in response to this
      question.  Of course, there are exceptions: IMFIT and JMFIT use
      solely the message file if DOCRT is true.
      DOCRT = -1 means to use the line printer or a text file if
      OUTPRINT is not blank.  In the latter case, DOCRT=-2 suppresses
      page-feed characters in page headers and DOCRT=-3 suppresses
      most header information including all page headers.
Null value:  task dependent - 0 may mean no print or may mean to use
      the line printer

Verbs:
   ABOUT.........Displays lists and information on tasks, verbs, adverbs.
   BDF2AIPS......Read EVLA ASDM/BDF data into AIPS.
   BDFLIST.......List contents of EVLA ASD data file.
   EXPLAIN.......Displays help + extended information describing a
                 task/symbol.
   HELP..........Displays information on tasks, verbs, adverbs.
   OBITIMAG......Access to OBIT task Imager without self-cal or peeling.
   OBITMAP.......Simplified access to OBIT task Imager.
   OBITPEEL......Access to OBIT task Imager with self-cal and peeling.
   OBITSCAL......Access to OBIT task Imager with self-cal, NOT peeling.
   OFMLIST.......Lists the current TV OFM table(s) on the terminal or
                 printer.
   PRTHI.........Prints selected contents of the history extension file.
   PRTMSG........Prints selected contents of the user's message file.
Procedures:
   MAXTAB........Returns maximum version number of named table.
   VLASUMM.......Plots selected contents of SN or CL files.
   VLBASUMM......Prints a summary of a VLBI experiment.
Tasks:
   ALVPR.........Prints statistics on the Allan Variance of a UV data set.
   ANBPL.........Plots and prints uv data converted to antenna based
                 values.
   BLSUM.........Sums images over irregular sub-images, displays spectra.
   BSPRT.........Print BS tables.
   COHER.........Baseline Phase coherence measurement.
   CORER.........Calculates correlator statistics and flags bad ones.
   DISKU.........Shows disk use by one or all users.
   DTSUM.........Task to provide a summary of the contents of a dataset.
   FGPRT.........Pprints counts of selected portions of an FG table.
   FINDR.........Find normal values for a uv data set.
   FLAGR.........Edit data based on internal RMS, amplitudes, weights.
   HFPRT.........Write HF tables from CL2HF.
   LISTR.........Prints contents of UV data sets and assoc. calibration
                 tables.
   MFPRT.........Prints MF tables in a format needed by modelling
                 software.
   OTFIN.........Lists on-the-fly single-dish SDD format data files.
   PRTAB.........Prints any table-format extension file.
   PRTAC.........Prints contents and summaries of the accounting file.
   PRTAN.........Prints the contents of the ANtenna extension file.
   PRTCC.........Prints the contents of a Clean Components extension file.
   PRTIM.........Prints image intensities from an MA catalog entry.
   PRTOF.........Prints on-line flag table information.
   PRTSD.........Prints contents of AIPS single-dish data sets.
   PRTSY.........Task to print statistics from the SY table.
   PRTTP.........Prints contents of tapes, all supported formats.
   PRTUV.........Prints contents of a visibility (UV) data set.
   RFI...........Look for RFI in uv data.
   SAD...........Finds and fits Gaussians to portions of an image.
   SHOUV.........Displays uv data in various ways.
   SLPRT.........Task to print a Slice File.
   SYPRT.........Task to print values from the SY table.
   TADIF.........Prints differences between two table-format extension
                 files.
   TBDIF.........Compare entries in two tables.
   TBOUT.........Writes an AIPS table into a text file for user editting.
   TVSAD.........Finds and fits Gaussians to portions of an image with
                 interaction.
   TXPL..........Displays a plot (PL) file on a terminal or line printer.
   UVDIF.........Prints differences between two UV data sets.
   UVFND.........Prints selected data from UV data set to search for
                 problems.
   UVHOL.........Prints holography data from a UV data base with
                 calibration.
   UVPRT.........Prints data from a UV data base with calibration.
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