Navigate to bin directory and execute the following command

tclsh httpd.tcl -port 8016

Here, -port is an optional field. The port number is defaulted to 8015

Then open the following link in web browser which supports WebSockets (like latest version of Chrome or Firefox)

http://localhost:8016/websocket2.html

Now, you can connect with the server and send some text message to it and the server will simply echo it back to the client.

I have asked a question about implementing websockets with web-browser being a websocket client and Tcl being a websocket server in stackoverflow (https://stackoverflow.com/questions/48128997/tcl-server-with-websocket-client-on-browser)

Then Mr.Donal Fellows directed me to the following Wiki page.

http://wiki.tcl.tk/40442

Thanks to Mr.Jeff Smith who actually posted the starkit version of it. I have just unwrapped the code.

I have made it compatible with Tcl8.4 (as it was my requirement) by altering the binary scan/format commands.

The Tcl8.5 version has support for unsigned numbers by adding character u in the formatString. For binary scan, I have used bscan procedure which is taken from http://wiki.tcl.tk/4180. For binary format, I have changed the format specifier, u to *.

Mr.Jeff Smith

Mr.Donal Fellows