Section N

• AFTER - Execute a command after a time delay
• APPEND - Append to variable
• ARRAY - Manipulate array variables

- B -

• BELL - Ring a display's bell
• BGERROR - Command invoked to process background errors
• BINARY - Insert and extract fields from binary strings
• BIND - Arrange for X events to invoke Tcl scripts
• BINDTAGS - Determine which bindings apply to a window, and order of evaluation
• BITMAP - Images that display two colors
• BREAK - Abort looping command
• BUTTON - Create and manipulate button widgets

- C -

• CANVAS - Create and manipulate canvas widgets
• CASE - Evaluate one of several scripts, depending on a given value
• CATCH - Evaluate script and trap exceptional returns
• CD - Change working directory
• CHECKBUTTON - Create and manipulate checkbutton widgets
• CLIPBOARD - Manipulate Tk clipboard
• CLOCK - Obtain and manipulate time
• CLOSE - Close an open channel.
• CONCAT - Join lists together
• CONTINUE - Skip to the next iteration of a loop

- D -

• DESTROY - Destroy one or more windows

- E -

• ENTRY - Create and manipulate entry widgets
• EOF - Check for end of file condition on channel
• ERROR - Generate an error
• EVAL - Evaluate a Tcl script
• EVENT - Miscellaneous event facilities: define virtual events and generate events
• EXEC - Invoke subprocess(es)
• EXIT - End the application
• EXPR - Evaluate an expression

- F -

• FBLOCKED - Test whether the last input operation exhausted all available input
• FCONFIGURE - Set and get options on a channel
• FCOPY - Copy data from one channel to another.
• FILE - Manipulate file names and attributes
• FILEEVENT - Execute a script when a channel becomes readable or writable
• FILENAME - File name conventions supported by Tcl commands
• FLUSH - Flush buffered output for a channel
• FOCUS - Manage the input focus
• FONT - Create and inspect fonts.
• FOR - ``For'' loop
• FOREACH - Iterate over all elements in one or more lists
• FORMAT - Format a string in the style of sprintf
• FRAME - Create and manipulate frame widgets

- G -

• GETS - Read a line from a channel
• GLOB - Return names of files that match patterns
• GLOBAL - Access global variables
• GRAB - Confine pointer and keyboard events to a window sub-tree
• GRID - Geometry manager that arranges widgets in a grid

- H -

• HISTORY - Manipulate the history list
• HTTP - Client-side implementation of the HTTP/1.0 protocol.

- I -

• IF - Execute scripts conditionally
• IMAGE - Create and manipulate images
• INCR - Increment the value of a variable
• INFO - Return information about the state of the Tcl interpreter
• INTERP - Create and manipulate Tcl interpreters

- J -

• JOIN - Create a string by joining together list elements

- L -

• LABEL - Create and manipulate label widgets
• LAPPEND - Append list elements onto a variable
• LHA - convert a Lisp Machine bitmap file into pgm format
• LIBRARY - standard library of Tcl procedures
• LINDEX - Retrieve an element from a list
• LINSERT - Insert elements into a list
• LIST - Create a list
• LISTBOX - Create and manipulate listbox widgets
• LLENGTH - Count the number of elements in a list
• LOAD - Load machine code and initialize new commands.
• LOWER - Change a window's position in the stacking order
• LRANGE - Return one or more adjacent elements from a list
• LREPLACE - Replace elements in a list with new elements
• LSEARCH - See if a list contains a particular element
• LSORT - Sort the elements of a list

- M -

• MENU - Create and manipulate menu widgets
• MENUBUTTON - Create and manipulate menubutton widgets
• MESSAGE - Create and manipulate message widgets

- N -

• NAMESPACE - create and manipulate contexts for commands and variables

- O -

• OPEN - Open a file-based or command pipeline channel
• OPTION - Add/retrieve window options to/from the option database
• OPTIONS - Standard options supported by widgets

- P -

• PACKAGE - Facilities for package loading and version control
• PHOTO - Full-color images
• PID - Retrieve process id(s)
• PLACE - Geometry manager for fixed or rubber-sheet placement
• PROC - Create a Tcl procedure
• PUTS - Write to a channel
• PWD - Return the current working directory

- R -

• RADIOBUTTON - Create and manipulate radiobutton widgets
• RAISE - Change a window's position in the stacking order
• READ - Read from a channel
• REGEXP - Match a regular expression against a string
• REGISTRY - Manipulate the Windows registry
• REGSUB - Perform substitutions based on regular expression pattern matching
• RENAME - Rename or delete a command
• RESOURCE - Manipulate Macintosh resources
• RETURN - Return from a procedure

- S -

• SAFE TCL - A mechanism for creating and manipulating safe interpreters.
• SCALE - Create and manipulate scale widgets
• SCAN - Parse string using conversion specifiers in the style of sscanf
• SCROLLBAR - Create and manipulate scrollbar widgets
• SEEK - Change the access position for an open channel
• SELECTION - Manipulate the X selection
• SEND - Execute a command in a different application
• SET - Read and write variables
• SOCKET - Open a TCP network connection
• SOURCE - Evaluate a file or resource as a Tcl script
• SPLIT - Split a string into a proper Tcl list
• STRING - Manipulate strings
• SUBST - Perform backslash, command, and variable substitutions
• SWITCH - Evaluate one of several scripts, depending on a given value

- T -

• TCL - Summary of Tcl language syntax.
• TCLVARS - Variables used by Tcl
• TELL - Return current access position for an open channel
• TEXT - Create and manipulate text widgets
• TIME - Time the execution of a script
• TK - Manipulate Tk internal state
• TKERROR - Command invoked to process background errors
• TKVARS - Variables used or set by Tk
• TKWAIT - Wait for variable to change or window to be destroyed
• TK_DIALOG - Create modal dialog and wait for response
• TK_POPUP - Post a popup menu
• TK_SETPALETTE - Modify the Tk color palette
• TOPLEVEL - Create and manipulate toplevel widgets
• TRACE - Monitor variable accesses

- U -

• UNKNOWN - Handle attempts to use non-existent commands
• UNSET - Delete variables
• UPDATE - Process pending events and idle callbacks
• UPLEVEL - Execute a script in a different stack frame
• UPVAR - Create link to variable in a different stack frame

- V -

• VARIABLE - create and initialize a namespace variable
• VWAIT - Process events until a variable is written

- W -

• WHILE - Execute script repeatedly as long as a condition is met
• WINFO - Return window-related information
• WM - Communicate with window manager