how do i build, install and use the Tcl/Tk ?

download it @ http://www.tcl.tk/software/tcltk/

read the doc @ http://www.tcl-tk.net/man/

check google results @ http://www.google.com/search?num=20&hl=en&lr=&ie=UTF-8&oe=utf-8&safe=off&q=%22tcl/tk%22

peace

okay i have installed it...

now how can i run a program written in tcl/tk interpreter???

install your distro. RPMs
to run a program under linux:
open an xterm
suppose the executable is called foo
if the directory where the program executable reside is in your PATH
type foo
if not
cd /to/the/executable/dir
type:
./foo

and if the script's permition don;t have the executable bit set you can use
tcl foo

to run it, or make it executable using

chmod +x foo

cheers,
Alaa

the tcl/tk interpreter is called
wish

weird huh!

perl interpreter is called perl
python interpreter is called python
ocaml interpreter is called ocaml

anyway, just in case you want to learn tcl/tk
without anyone forcing you to it
I would recommned that you don't

tcl/tk even tought considered to be very stable
and used to be popular
is actually not as powerful as other languages

if you want to learn or just need a scripting language
choose either python or ruby

at least you got make an argument and give some explanation to why you think he shouldn't learn tcl and why you disregarded all scripting languages except Python and Ruby.
we are not here to just state opinions after all (you can do that in polls).

BTW I agree with you that Python is the good choice but it has already been discussed before.