NSTX-U logo
Home
MDSplus
Overview Programming
TCL
Descriptions Examples
TDI
Tutorial Functions Reference
Trees Labels Action Nodes
Diagnostics
Overview Disruption Detection Electron Profiles Equilibrium Reconstruction Fast Ion Measurements Fluctuation Measurements HHFW RF Diagnostics Ion Profiles MHD Mode Detection Neutron Measurements PFC Diagnostics Plasma Imaging Radiated Power Spectroscopic Measurements
Shot Lists
Overview By Run Date By XP Number By XMP Number
Images
Overview Fast Cameras Shot Summaries SpecFit Plots
Web Tools
Overview EFIT Query EFITs by Shot Number mdsScalars mdsPlotList mdsTable mdsShotSearch MDSplus Tree Search NSTXView (beta) Phoebus View Physics Logbook Physics Viewer pyWebTools Shot View TRANSP Run Search Web Display Web Scope
Applications
Overview EFITviewer GPEC/DCON jScope jTraverser2 LRDFIT OMFIT PyISOLVER SpecFit TRANSP TRANSP Help
IDL
Overview Setup Introduction Advanced Plotting MDSplus Access Tutorial Downloads Examples
User Routines
Alphabetical By Category
MPIDL
Overview Library Functions
FAQ
A-C D-E H-R SA-SE SH-SY T-W
TCL Commands (T-W)
TYPE

Output a line of text to SYS$OUTPUT.

Format: TYPE text


VERIFY

Verifies the node linkages in an MDSplus tree. VERIFY will report any corruption of the tree structure.

FORMAT: VERIFY


WAIT

Places the current process in a wait state until a specified period of time has elapsed. The WAIT command is used in a command procedure to delay processing of either the procedure itself or a set of commands in the procedure.

Format: WAIT delta-time

Parameters

delta-time

Specifies the time interval to wait. The time must be specified according to the rules for specifying delta time values as described in Section 2.5 in the VAX/VMS DCL Dictionary (or access the HELP topic SPECIFY). Note, however, that the delta time can contain only the hours, minutes, seconds, and hundredths of seconds fields; the days part must be omitted. Also, the delta time must begin with the number of hours and not a colon, even if the number of hours is zero.

Note that if you issue the WAIT command interactively, the WAIT command does not prompt you for a time value. However, in order for the command to have any effect, you must supply a time value.


WFEVENT

Waits for an MDSplus event.

FORMAT: WFEVENT event


WRITE

The WRITE command will write the tree currently open for edit to a file.

FORMAT: WRITE

This command is used to write out a tree which is being edited.

© 2026 Princeton Plasma Physics Laboratory