13.40 VERB
\zxhlp{VERB}
Type: General type of POPS symbol
Use: Verbs are the magic words which cause FORTRAN code to
execute some function. They are compiled into AIPS
by the programmers and their meaning remains fixed
at least until the programmers change their minds.
Grammar: Verbs may be given either in compile mode or in
regular execute mode. In the former, their pointers
are stored with the procedure and they are executed
when the procedure is invoked. In the latter, they
are compiled with the other statements and parameters
on the input line and then executed before a new
input line is read.
Execution: Verbs are executed when the line in which they
appear is executed and are simply referenced by their
name. The syntax "\zxhlp{GO} verb_name" is converted by AIPS to
"\zxhlp{TPUT} verb_name ; verb_name" which saves the adverbs of
"verb_name" for a later \zxhlp{TGET} and then executes
"verb_name". The syntax "\zxhlp{TASK} = ’verb_name’ ; \zxhlp{GO}" will
not work.
****************************************************************
\zxhlp{ABOUT} displays lists and information on tasks, verbs, adverbs
\zxhlp{ABS} returns absolute value of argument
\zxhlp{ACOS} Returns arc cosine of argument (half-circle)
\zxhlp{ACTNOISE} puts estimate of actual image uncertainty and zero in header
\zxhlp{ADDBEAM} Inserts clean beam parameters in image header
\zxhlp{ADDDISK} makes a computer’s disks available to the current AIPS session
\zxhlp{ALLDEST} Delete a group or all of a users data files
\zxhlp{ALTDEF} Sets frequency vs velocity relationship into image header
\zxhlp{ALTSWTCH} Switches between frequency and velocity in image header
\zxhlp{APROPOS} displays all help 1-line summaries containing specified words
\zxhlp{ASIN} Returns arc sine of argument (half-circle)
\zxhlp{ATAN} Returns arc tangent of argument (half-circle)
\zxhlp{ATAN2} Returns arc tangent of two arguments (full circle)
\zxhlp{AVEOT} Advances tape to end-of-information point
\zxhlp{AVFILE} Moves tape forward or back to end-of-file marks
\zxhlp{AVMAP} Advance tape by one image (IBM-CV = obsolete tape file)
\zxhlp{AXDEFINE} Define or modify an image axis description
\zxhlp{BAMODIFY} edits characters in a line of a batch work file
\zxhlp{BATCH} starts entry of commands into batch-job work file
\zxhlp{BATCLEAR} removes all text from a batch work file
\zxhlp{BATEDIT} starts an edit (replace, insert) session on a batch work file
\zxhlp{BATLIST} lists the contents of a batch work file
\zxhlp{BDF2AIPS} Read \zxhlp{EVLA} \zxhlp{ASDM}/BDF data into AIPS
\zxhlp{BDFLIST} List contents of \zxhlp{EVLA} ASD data file
\zxhlp{BY} gives increment to use in \zxhlp{FOR} loops in POPS language
\zxhlp{CALDIR} lists calibrator source models available as AIPS FITS files
\zxhlp{CATALOG} list one or more entries in the user’s data directory
\zxhlp{CEIL} returns smallest integer greater than or equal the argument
\zxhlp{CELGAL} switches header between celestial and galactic coordinates
\zxhlp{CHAR} converts number to character string
\zxhlp{CHARMULT} Changes the multiplication factor for TV characters
\zxhlp{CHKNAME} Checks for existence of the specified image name
\zxhlp{CLR2NAME} clears adverbs specifying the second input image
\zxhlp{CLR3NAME} clears adverbs specifying the third input image
\zxhlp{CLR4NAME} clears adverbs specifying the fourth input image
\zxhlp{CLR5NAME} clears adverbs specifying the fifth input image
\zxhlp{CLRMSG} deletes messages from the user’s message file
\zxhlp{CLRNAME} clears adverbs specifying the first input image
\zxhlp{CLRONAME} clears adverbs specifying the first output image
\zxhlp{CLRSTAT} remove any read or write status flags on a directory entry
\zxhlp{CLRTEMP} clears the temporary literal area during a procedure
\zxhlp{CODECIML} Convert between decimal and sexagesimal coordinate values
\zxhlp{COODEFIN} Define or modify an image axis coordinate description
\zxhlp{COPIXEL} Convert between physical and pixel coordinate values
\zxhlp{COS} returns cosine of the argument in degrees
\zxhlp{COSTAR} Verb to plot a symbol at given position on top of a TV image
\zxhlp{COWINDOW} Set a window based on coordinates
\zxhlp{CPUTIME} displays curren tcpu and real time usage of the AIPS task
\zxhlp{CURBLINK} switch TV cursor between steady and blinking displays
\zxhlp{CURVALUE} displays image intensities selected via the TV cursor
\zxhlp{DAYNUMBR} finds day nuumber of an image or uv data set
\zxhlp{DEFAULT} Verb-like sets adverbs for a task or verb to initial values
\zxhlp{DELAY} Verb to pause AIPS for \zxhlp{DETIME} seconds
\zxhlp{DELBOX} Verb to delete boxes with TV cursor & graphics display.
\zxhlp{DFILEBOX} Verb to delete Clean boxes with TV cursor & write to file
\zxhlp{DISMOUNT} disables a magnetic tape and dismounts it from the tape drive
\zxhlp{DOCC} Adverb to control application to Clean component files
\zxhlp{DOWNCASE} Convert a string to all lower case letters
\zxhlp{DRAWBOX} Verb to draw Clean boxes on the display
\zxhlp{DUMP} displays portions of the POPS symbol table in all formats
\zxhlp{EGETHEAD} returns parameter value from image header and error code
\zxhlp{EGETNAME} fills in input name adverbs by catalog slot number, w error
\zxhlp{EHEX} converts decimal to extended hex
\zxhlp{END} marks end of block (\zxhlp{FOR}, \zxhlp{WHILE}, IF) of POPS code
\zxhlp{EPOCONV} Convert between J2000 and B1950 coordinates
\zxhlp{EPOSWTCH} Switches between B1950 and J2000 coordinates in header
\zxhlp{EVLA} puts the list of eVLA antennas in the current file on stack
\zxhlp{EXIT} ends an AIPS batch or interactive session
\zxhlp{EXP} returns the exponential of the argument
\zxhlp{EXPLAIN} displays help + extended information describing a task/symbol
\zxhlp{EXTDEST} deletes one or more extension files
\zxhlp{EXTLIST} lists detailed information about contents of extension files
\zxhlp{FILEBOX} Verb to reset Clean boxes with TV cursor & write to file
\zxhlp{FILEZAP} Delete an external file
\zxhlp{FLOOR} returns largest integer <= argument
\zxhlp{FOR} starts an iterative sequence of operations in POPS language
\zxhlp{FREESPAC} displays available disk space for AIPS in local system
\zxhlp{GAMMASET} changes the gamma-correction exponent used in the TV OFM
\zxhlp{GET2NAME} fills 2nd input image name parameters by catalog slot number
\zxhlp{GET3NAME} fills 3rd input image name parameters by catalog slot number
\zxhlp{GET4NAME} fills 4th input image name parameters by catalog slot number
\zxhlp{GET5NAME} fills 5th input image name parameters by catalog slot number
\zxhlp{GETDATE} Convert the current date and time to a string
\zxhlp{GETHEAD} returns parameter value from image header
\zxhlp{GETITIME} Verb to return the UV data integration time.
\zxhlp{GETNAME} fills 1st input image name parameters by catalog slot number
\zxhlp{GETONAME} fills 1st output image name parameters by catalog slot number
\zxhlp{GETPOPSN} Verb to return the pops number on the stack
\zxhlp{GETTHEAD} Returns keyword values from a table header, also column #, # rows
\zxhlp{GETVERS} finds maximum version number of an extension file
\zxhlp{GO} starts a task, detaching it from AIPS or \zxhlp{AIPSB}
\zxhlp{GRBLINK} Verb which blinks 2 TV graphics planes
\zxhlp{GRCLEAR} clears the contents of the specified TV graphics channels
\zxhlp{GRDROP} deletes the specified gripe entry
\zxhlp{GREAD} reads the colors of the specified TV graphics channel
\zxhlp{GRINDEX} lists users and time of all gripe entries
\zxhlp{GRIPE} enter a suggestion or bug report for the AIPS programmers
\zxhlp{GRLIST} lists contents of specified gripe entry
\zxhlp{GROFF} turns off specified TV graphics channelS
\zxhlp{GRON} turns on specified TV graphics channelS
\zxhlp{GWRITE} Sets the colors of the specified TV graphics channel
\zxhlp{HELP} displays information on tasks, verbs, adverbs
\zxhlp{HINOTE} adds user-generated lines to the history extension file
\zxhlp{HITEXT} writes lines from history extension file to text file
\zxhlp{HSA} puts the list of \zxhlp{HSA} antennas in the current file on stack
\zxhlp{HUEWEDGE} Show a wedge on the TV suitable for \zxhlp{TVHUEINT} displays
\zxhlp{IM2HEAD} displays the image 2 header contents to terminal, message file
\zxhlp{IM2TV} Verb to convert pixel coordinates to TV pixels
\zxhlp{IM3HEAD} displays the image 3 header contents to terminal, message file
\zxhlp{IM4HEAD} displays the image 4 header contents to terminal, message file
\zxhlp{IM5HEAD} displays the image 5 header contents to terminal, message file
\zxhlp{IMCENTER} returns pixel position of sub-image centroid
\zxhlp{IMDIST} determines spherical distance between two pixels
\zxhlp{IMERASE} replaces an image portion of the TV screen with zeros
\zxhlp{IMHEADER} displays the image header contents to terminal, message file
\zxhlp{IMOHEAD} displays the output image header contents
\zxhlp{IMPOS} displays celestial coordinates selected by the TV cursor
\zxhlp{IMSTAT} returns statistics of a sub-image
\zxhlp{IMVAL} returns image intensity and coordinate at specified pixel
\zxhlp{IMWEDGE} load step wedge of full range of image values to TV
\zxhlp{IMXY} returns pixel coordinates selected by the TV cursor
\zxhlp{INP} displays adverb values for task, verb, or proc - quick form
\zxhlp{INPUTS} displays adverb values for task, verb, or proc - to msg file
\zxhlp{JOBLIST} lists contents of a submitted and pending batch job
\zxhlp{KLEENEX} ends an AIPS interactive session wiping the slate klean
\zxhlp{LENGTH} returns length of string to last non-blank character
\zxhlp{LN} returns the natural logarithm of the argument
\zxhlp{LOG} returns the base-10 logarithm of the argument
\zxhlp{M2CAT} displays images in the user’s catalog directory for \zxhlp{IN2DISK}
\zxhlp{M3CAT} displays images in the user’s catalog directory for \zxhlp{IN3DISK}
\zxhlp{M4CAT} displays images in the user’s catalog directory for \zxhlp{IN4DISK}
\zxhlp{M5CAT} displays images in the user’s catalog directory for \zxhlp{IN5DISK}
\zxhlp{MAX} returns the maximum of its two arguments
\zxhlp{MAXFIT} returns pixel position and image intensity at a maximum
\zxhlp{MCAT} lists images in the user’s catalog directory on disk \zxhlp{INDISK}
\zxhlp{MFITSET} gets adverbs for running \zxhlp{IMFIT} and \zxhlp{JMFIT}
\zxhlp{MIN} returns the minimum of its two arguments
\zxhlp{MOCAT} displays images in the user’s catalog directory for \zxhlp{OUTDISK}
\zxhlp{MOD} returns remainder after division of 1st argument by 2nd
\zxhlp{MODULUS} returns square root of sum of squares of its two arguments
\zxhlp{MOUNT} makes a tape drive available to user’s AIPS and tasks
\zxhlp{NAMEGET} fills 1st input image name parameters by default matching
\zxhlp{OBITIMAG} Access to \zxhlp{OBIT} task Imager without self-cal or peeling
\zxhlp{OBITMAP} Simplified access to \zxhlp{OBIT} task Imager
\zxhlp{OBITPEEL} Access to \zxhlp{OBIT} task Imager with self-cal and peeling
\zxhlp{OBITSCAL} Access to \zxhlp{OBIT} task Imager with self-cal, NOT peeling
\zxhlp{OFFPSEUD} Verb which deactivates all pseudo-color displays
\zxhlp{OFFSCROL} Verb which deactivates scroll of an image
\zxhlp{OFFTRAN} Verb which restores transfer function to normal
\zxhlp{OFFZOOM} Verb which returns the hardware IIS zoom to normal
\zxhlp{OFMADJUS} interactive linear adjustment of current TV OFM lookup tables
\zxhlp{OFMCONT} creates/modifies TV color OFMs with level or wedged contours
\zxhlp{OFMDIR} lists names of the user’s and system’s OFM files from \zxhlp{OFMFIL}
\zxhlp{OFMGET} loads TV \zxhlp{OFMS} from an OFM save file
\zxhlp{OFMLIST} lists the current TV OFM table(s) on the terminal or printer
\zxhlp{OFMSAVE} saves the TV’s current OFM lookup table in a text file
\zxhlp{OFMTWEAK} interactive modification of current TV OFM lookup tables
\zxhlp{OFMZAP} deletes an OFM lookup table save file
\zxhlp{OUTPUTS} displays adverb values returned from task, verb, or proc
\zxhlp{PARALLEL} Verb to set or show degree of parallelism
\zxhlp{PASSWORD} Verb to change the current password for the login user
\zxhlp{PCAT} Verb to list entries in the user’s catalog (no log file).
\zxhlp{PLGET} gets the adverbs used to make a particular plot file
\zxhlp{PRINT} Print the value of an expression
\zxhlp{PRINTER} Verb to set or show the printer(s) used
\zxhlp{PROC} Define a POPS procedure using procedure editor.
\zxhlp{PROCEDUR} Define a POPS procedure using procedure editor
\zxhlp{PRTHI} prints selected contents of the history extension file
\zxhlp{PRTMSG} prints selected contents of the user’s message file
\zxhlp{PSEUDOVB} Declares a name to be a symbol of type pseudoverb
\zxhlp{PUTHEAD} Verb to modify image header parameters.
\zxhlp{PUTTHEAD} inserts a given value into a table keyword/value pair
\zxhlp{PUTVALUE} Verb to store a pixel value at specified position
\zxhlp{Q2HEADER} Verb to summarize the image 2 header: positions at center
\zxhlp{Q3HEADER} Verb to summarize the image 3 header: positions at center
\zxhlp{Q4HEADER} Verb to summarize the image 4 header: positions at center
\zxhlp{Q5HEADER} Verb to summarize the image 5 header: positions at center
\zxhlp{QGETVERS} finds maximum version number of an extension file quietly
\zxhlp{QHEADER} Verb to summarize the image header: positions at center
\zxhlp{QIMVAL} returns image intensity and coordinate at specified pixel
\zxhlp{QINP} displays adverb values for task, verb, or proc - restart form
\zxhlp{QOHEADER} Verb to summarize the output image header: center positions
\zxhlp{QUEUES} Verb to list all submitted jobs in the job queue
\zxhlp{RANDOM} Compute a random number from 0 to 1
\zxhlp{READ} Read a value from the users terminal
\zxhlp{REBOX} Verb to reset boxes with TV cursor & graphics display.
\zxhlp{RECAT} Verb to compress the entries in a catalog file
\zxhlp{REHEX} converts extended hex string to decimal
\zxhlp{REMDISK} removes a computer’s disks from the current AIPS session
\zxhlp{REMOVIE} Verb to rerun a previously loaded (\zxhlp{TVMOVIE}) movie
\zxhlp{RENAME} Rename a file (UV or Image)
\zxhlp{RENUMBER} Verb to change the catalog number of an image.
\zxhlp{REROAM} Verb to use previous roam image mode, then does roam
\zxhlp{RESCALE} Verb to modify image scale factor and offset
\zxhlp{RESTART} Verb to trim the message log file and restart AIPS
\zxhlp{RESTORE} Read POPS memory file from a common area.
\zxhlp{RETURN} Exit a procedure allowing a higher level proc to continue.
\zxhlp{REVERSN} checks disk for presence of extension files
\zxhlp{REWIND} Verb to rewind a tape
\zxhlp{ROAM} Roam around an image too large for the display.
\zxhlp{ROAMOFF} Verb to recover image from roam display in simple display mode
\zxhlp{RUN} Pseudoverb to read an external \zxhlp{RUN} files into AIPS.
\zxhlp{SAVDEST} Verb to destroy all save files of a user.
\zxhlp{SAVE} Pseudoverb to save full POPS environment in named file
\zxhlp{SCALAR} Declares a variable to be a scalar in a procedure
\zxhlp{SCAT} lists scratch files in the user’s catalog directory on all disks
\zxhlp{SCRATCH} delete a procedure from the symbol table.
\zxhlp{SCRDEST} Verb to destroy scratch files left by bombed tasks.
\zxhlp{SET1DG} Verb to set 1D gaussian fitting initial guesses.
\zxhlp{SETDEBUG} Verb to set the debug print and execution level
\zxhlp{SETMAXAP} Examines/alters system parameter limiting dynamic pseudo-AP
\zxhlp{SETROAM} Verb use to set roam image mode, then do roam. OBSOLETE
\zxhlp{SETSLICE} Set slice endpoints on the TV interactively
\zxhlp{SG2RUN} Verb copies the K area to a text file suitable for \zxhlp{RUN}
\zxhlp{SGDESTR} Verb-like to destroy named POPS environment save file
\zxhlp{SGINDEX} Verb lists \zxhlp{SAVE} areas by name and time of last \zxhlp{SAVE}.
\zxhlp{SHOW} Verblike to display the \zxhlp{TELL} adverbs of a task.
\zxhlp{SIN} Compute the sine of a value
\zxhlp{SIZEFILE} return file size plus estimate of \zxhlp{IMAGR} work file size
\zxhlp{SPY} Verb to determine the execution status of all AIPS tasks
\zxhlp{SQRT} Square root function
\zxhlp{STALIN} revises history by deleting lines from history extension file
\zxhlp{STQUEUE} Verb to list pending \zxhlp{TELL} operations
\zxhlp{STRING} Declare a symbol to be a string variable in POPS
\zxhlp{SUBMIT} Verb which submits a batch work file to the job queue
\zxhlp{SUBSTR} Function verb to specify a portion of a \zxhlp{STRING} variable
\zxhlp{SYSTEM} Verb to send a command to the operating system
\zxhlp{T1VERB} Temporary verb for testing (also T2VERB...T9VERB)
\zxhlp{TABGET} returns table entry for specified row, column and subscript.
\zxhlp{TABPUT} replaces table entry for specified row, column and subscript.
\zxhlp{TAN} Tangent function
\zxhlp{TAPES} Verb to show the \zxhlp{TAPES}(s) available
\zxhlp{TGET} Verb-like gets adverbs from last \zxhlp{GO} of a task
\zxhlp{TGINDEX} Verb lists those tasks for which \zxhlp{TGET} will work.
\zxhlp{THEN} Specified the action if an IF test is true
\zxhlp{TIMDEST} Verb to destroy all files which are too old
\zxhlp{TK1SET} Verb to reset 1D gaussian fitting initial guess.
\zxhlp{TKAGUESS} Verb to add a plot of the slice model guess directly on TEK
\zxhlp{TKAMODEL} Verb to add slice model display directly on TEK
\zxhlp{TKARESID} Verb to add slice model residuals directly on TEK
\zxhlp{TKASLICE} Verb to add a slice display on TEK from slice file
\zxhlp{TKERASE} Erase the graphics screen or window
\zxhlp{TKGUESS} Verb to display slice model guess directly on TEK
\zxhlp{TKMODEL} Verb to display slice model directly on TEK
\zxhlp{TKPOS} Read a position from the graphics screen or window
\zxhlp{TKRESID} Verb to display slice model residuals directly on TEK
\zxhlp{TKSET} Verb to set 1D gaussian fitting initial guesses.
\zxhlp{TKSLICE} Verb to display slice file directly on TEK
\zxhlp{TKVAL} Verb to obtain value under cursor from a slice
\zxhlp{TKXY} Verb to obtain pixel value under cursor
\zxhlp{TO} Specifies upper limit of a \zxhlp{FOR} loop
\zxhlp{TPHEAD} Verb to list image header from FITS or IBM-CV tape
\zxhlp{TPUT} Verb-like puts adverbs from a task in file for TGETs
\zxhlp{TV1SET} Verb to reset 1D gaussian fitting initial guess on TV plot.
\zxhlp{TV2COLOR} Verb to activate a 2-color pseudo-color display on the TV
\zxhlp{TV3COLOR} Verb to initiate 3-color display using 3 TV channels
\zxhlp{TVACOMPS} Verb to add slice model components directly on TV graphics
\zxhlp{TVAGUESS} Verb to re-plot slice model guess directly on TV graphics
\zxhlp{TVAMODEL} Verb to add slice model display directly on TV graphics
\zxhlp{TVANOT} Verb to load anotation to the TV image or graphics
\zxhlp{TVARESID} Verb to add slice model residuals directly on TV graphics
\zxhlp{TVASLICE} Verb to add a slice display on TV graphics from slice file
\zxhlp{TVBANDW} Verb to activate three types of black and white TV enhancements
\zxhlp{TVBLINK} Verb which blinks 2 TV planes, can do enhancement also
\zxhlp{TVBOX} Verb to set boxes with TV cursor & graphics display.
\zxhlp{TVCLEAR} Verb to clear image from TV channel(s)
\zxhlp{TVCOMPS} Verb to display slice model components directly on TV graphics
\zxhlp{TVCUBE} Verb to load a cube into tv channel(s) & run a movie
\zxhlp{TVDATA} displays information about the current TV display
\zxhlp{TVFACTS} displays information about the current TV display
\zxhlp{TVFIDDLE} Verb enhances B/W or color TV image with zooms
\zxhlp{TVGUESS} Verb to display slice model guess directly on TV graphics
\zxhlp{TVHELIX} Verb to activate a helical hue-intensity TV pseudo-coloring
\zxhlp{TVHUEINT} Verb to make hue/intensity display from 2 TV channels
\zxhlp{TVILINE} Verb to draw a straight line on an image on the TV
\zxhlp{TVINIT} Verb to return TV display to a virgin state
\zxhlp{TVLABEL} Verb to label the (map) image on the TV
\zxhlp{TVLAYOUT} Verb to label the holography image on the TV with panel layout
\zxhlp{TVLINE} Verb to load a straight line to the TV image or graphics
\zxhlp{TVLOD} Verb to load an image into a TV channel
\zxhlp{TVLUT} Verb which modifies the transfer function of the image
\zxhlp{TVMBLINK} Verb which blinks 2 TV planes either auto or manually
\zxhlp{TVMLUT} Verb which modifies the transfer function of the image
\zxhlp{TVMODEL} Verb to display slice model directly on TV graphics
\zxhlp{TVMOVIE} Verb to load a cube into tv channel(s) & run a movie
\zxhlp{TVNAME} Verb to fill image name of that under cursor
\zxhlp{TVOFF} Verb which turns off TV channel(s).
\zxhlp{TVON} Turns on one or all TV image planes
\zxhlp{TVPHLAME} Verb to activate "flame-like" pseudo-color displays
\zxhlp{TVPOS} Read a TV screen position using cursor
\zxhlp{TVPSEUDO} Verb to activate three types of pseudo-color displays
\zxhlp{TVRESID} Verb to display slice model residuals directly on TV graphics
\zxhlp{TVROAM} Load up to 16 TV image planes and roam a subset thereof
\zxhlp{TVSCROL} Shift position of image on the TV screen
\zxhlp{TVSET} Verb to set slice Gaussian fitting initial guesses from TV plot
\zxhlp{TVSLICE} Verb to display slice file directly on TV
\zxhlp{TVSPLIT} Compare two TV image planes, showing halves
\zxhlp{TVSTAR} Verb to plot star positions on top of a TV image
\zxhlp{TVSTAT} Find the mean and RMS in a blotch region on the TV
\zxhlp{TVTRANSF} Interactively alters the TV image plane transfer function
\zxhlp{TVWEDGE} Show a linear wedge on the TV
\zxhlp{TVWINDOW} Set a window on the TV with the cursor
\zxhlp{TVWLABEL} Put a label on the wedge that you just put on the TV
\zxhlp{TVZOOM} Activate the TV zoom
\zxhlp{TYPE} Type the value of an expression
\zxhlp{U2CAT} list a user’s UV and scratch files on disk \zxhlp{IN2DISK}
\zxhlp{U3CAT} list a user’s UV and scratch files on disk \zxhlp{IN3DISK}
\zxhlp{U4CAT} list a user’s UV and scratch files on disk \zxhlp{IN4DISK}
\zxhlp{U5CAT} list a user’s UV and scratch files on disk \zxhlp{IN5DISK}
\zxhlp{UCAT} list a user’s UV and scratch files on disk \zxhlp{INDISK}
\zxhlp{UNQUE} remove a given job from the job queue
\zxhlp{UOCAT} list a user’s UV and scratch files on disk \zxhlp{OUTDISK}
\zxhlp{UPCASE} Convert a string to all upper case letters
\zxhlp{USAVE} Pseudoverb to save full POPS environment in named file
\zxhlp{VALUE} Convert a string to a numeric value
\zxhlp{VERB} Declares a name to be a symbol of type verb
\zxhlp{VGET} Verb-like gets adverbs from version task parameter save area
\zxhlp{VGINDEX} Verb lists those tasks for which \zxhlp{VGET} will work.
\zxhlp{VLA} puts the list of \zxhlp{VLA} antennas in the current file on stack
VLBA puts the list of VLBA antennas in the current file on stack
\zxhlp{VPUT} Verb-like puts adverbs from a task in files for VGETs
\zxhlp{WAITTASK} halt AIPS until specified task is finished
\zxhlp{WEDERASE} Load a wedge portion of the TV with zeros
\zxhlp{XHELP} Accesses hypertext help system
\zxhlp{ZAP} Delete a catalog entry and its extension files