how can i run the examples given in the web ?

[xiaogh98]

when i run the examples (given in the web ) by double click on the file , it
occurs error 'invalid command name "wipe" ' .
can you tell me how to solve it ?
thank you in advance

[xiaogh98]

i have another question , how can i define a working folder ?
thanks!

[silvia]

please review the tcl manual.
somethimng like chdir, i think look under file in tcl