Tips for using vwtool

Enter the command from the vwtool command line

You can enter parameters on the command line (following the command name), or let vwtool prompt you for the information by entering just the command name. You can combine the methods by entering a portion of the command line; vwtool then prompts you for the remaining parameters.

Entering the parameters on the command line is intended primarily for script-driven input. If you are creating scripts, you can enter the information when prompted; then use the = command to display the parameters in the correct command-line format.

Repeat the previous command

To repeat the previous command for commands that do not modify the system, press Enter from the command line. To repeat the previous command for commands that do modify the system, you must re-enter the command from the command line.

Embed a blank or enter a zero-length string for any parameter

Command parameters on the command line are position-dependent. To enter an embedded blank in any parameter, surround the parameter in double quotes. To enter a zero-length string for any parameter, use two successive double quotes ("").

Terminate command input or execution

You can enter Ctrl-C at any time during command input or execution to terminate the input or execution. If you enter Ctrl-C during execution, the command aborts immediately.

Save vwtool session output to a file

You can create a hardcopy of your vwtool session by sending a copy of your vwtool session output to a text file as well as the terminal. For details, see the hardcopy command.

Change the current isolated region

Within a workflow system, vwtool accesses one isolated region at a time. When you start vwtool, it accesses isolated region 1 by default. After vwtool is running, you can change the isolated region via the region command.

Get help

In addition to this documentation, the vwtool help command displays a list of all available commands.