Tcl Help - 2021.2 English

Vivado Design Suite Tcl Command Reference Guide (UG835)

Document ID
UG835
Release Date
2021-10-22
Version
2021.2 English
The Tcl help command provides information related to the supported Tcl commands.
  • help – Returns a list of Tcl command categories.

    help

    Command categories are groups of commands performing a specific function, like File I/O for instance.

  • help -category category – Returns a list of commands found in the specified category.

    help -category object

    This example returns the list of Tcl commands for handling objects.

  • help pattern – Returns a list of commands that match the specified search pattern. This form can be used to quickly locate a specific command from a group of commands.

    help get_*

    This example returns the list of Tcl commands beginning with get_.

  • help command – Provides detailed information related to the specified command.

    help get_cells

    This example returns specific information of the get_cells command.

  • help -args command – Provides an abbreviated help text for the specified command, including the command syntax and a brief description of each argument.

    help -args get_cells

  • help -syntax command – Reports the command syntax for the specified command.

    help -syntax get_cells