Running a tcl script in windows

During its install, the ActiveState distribution gives the user the option to associate files ending in. If you are not using this distribution, or you want to associate the.

In addition, if you want to run the script from the command line simply by typing its name, add the extension to the PATHEXT environment variable. You may wish to associate separate extensions, for example. In order to run a Tcl script by double-clicking the script file, the file type must be associated with the Tcl shell.

See the previous entry in this FAQ. As an alternative to making. For example, assume printargs. See an explanation of the above and more sophisticated versions in the Tcl wiki. On startup, tclsh. Some tasks can be accomplished from Tcl by invoking external programs or through the use of a Tcl extension example.

If you are writing a one-off script with limited use or the command is rarely invoked, using an external program might be sufficient. In other cases, use of an extension is likely to be beneficial.

It is generally much faster and also protects against the external program not being available or installed on the target system this is true even for Windows components and differences arising from localization. Tcl provides the registry command for doing various operations on the Windows registry. You will need to load the registry package first:. Additional information is provided in the Windows environment variables which can be accessed via the global env array.

The TkPrint or Printer extensions may be used for printing under Windows. Tcl provides the exec command for starting new processes.

The following commands all start a copy of notepad:. Line 1 assumes notepad. Line 2 explicitly specifies the path to the program. Line 1 returns the path to notepad. Line 3 returns the command line to invoke an internal cmd. For additional control over the child process, such as its display properties, security attributes, priority etc. Use the Tcl open command to open a pipe by prefixing the child process command line with a character.

To start up an application associated with a file or URL, invoke the Windows cmd. For example,. The Windows Explorer Shell associates certain actions that can be carried out on a document based on its file type.

These actions, such as Open , Edit , Print can be invoked from the right-click menu in Explorer. The following will use the default action Open to start editing the file with Microsoft Word. Windows Vista and later versions implement User Account Control UAC under which even processes belonging to privileged accounts run with reduced privileges unless explicitly elevated by the user.

As an alternative, you can invoke the Windows command line program taskkill. Hence when used in a literal it needs to be doubled:. You can either use the Tcl glob command to read a directory and poll for changes or use the TWAPI extension as shown in the session below. Both methods have their advantages and disadvantages. Polling can be expensive as the entire directory tree has to be read and compared.

On the other hand, notifications are not guaranteed to be delivered under load. Reliability is particularly an issue with remote file systems. You may wish to use a combination of the two methods depending on the application. This command will print a line whenever an executable. The vwait command is required in this small example as notifications require the Tcl event loop to be running.

It invokes the supplied callback whenever a device volume change event occurs. The callback can filter for the events of interest based on the parameter supplied to it.

Please help us improve Stack Overflow. Take our short survey. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How to run a tcl script in windows machine using ". Ask Question. Asked 7 years, 1 month ago. Active 2 years, 4 months ago. Viewed 8k times. TCL script :! Please suggest me any ideas to achieve this.

Thanks in advance. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Asked 6 years, 11 months ago. Active 6 years, 11 months ago. Viewed 19k times. Improve this question. Or: askubuntu. Add a comment. If you use incorrect arguments for a command, Help displays the correct usage. To add default assignments not normally present in your project-specific. Click OK. The Quartus II software saves the.

To run a Tcl command or script from command line:. At the command prompt, type the following command to enter the Quartus II Tcl scripting shell:.

To run a Tcl command or script from the Tcl Console:. Note: You must enter individual Tcl commands on a single line. Note: To load a specific Tcl package, type the following at the Tcl Console:.