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unknown command calls unknown proc
Other Facilities in Tcl example from a Well House Consultants training course
More on Other Facilities in Tcl [link]

This example is described in the following article(s):
   • What does Tcl do if you try to run a command that is not defined? - [link]

Source code: dunno Module: T214
# unknown command calls unknown proc

proc unknown {args} {
        puts "Yer WOT - $args"
        }

shout
shout it from the highest hill

# define a loop of procs

foreach day "Monday Tuesday Wednesday Thursday" {
        proc $day args {
                puts "A great day to learn Tcl"
        }
}

Sunday
Monday
Wednesday
Friday

puts [array names env]

exit

# Pure interpretter, so the rest of this is in effect a comment after the exit

Here's how it runs

munchkin:o15tcl grahamellis$ tclsh dunno
Yer WOT - shout
Yer WOT - shout it from the highest hill
Yer WOT - Sunday
A great day to learn Tcl
A great day to learn Tcl
Yer WOT - Friday
HOME rvm_bin_path Apple_PubSub_Socket_Render LANG __array_start IRBRC LOGNAME PWD COMMAND_MODE GEM_PATH DISPLAY
SSH_AUTH_SOCK RUBY_VERSION __CF_USER_TEXT_ENCODING TERM_PROGRAM MY_RUBY_HOME TERM_SESSION_ID TERM SHELL TMPDIR
SECURITYSESSIONID SHLVL Apple_Ubiquity_Message rvm_path GEM_HOME rvm_version rvm_prefix escape_flag OLDPWD
_second TERM_PROGRAM_VERSION PATH _ _first USER
munchkin:o15tcl grahamellis$
Learn about this subject
This module and example are covered on the following public courses:
 * Learning to program in Tcl
 * Tcl Programming
 * Tcl Programming
Also available on on site courses for larger groups

Books covering this topic
Yes. We have over 700 books in our library. Books covering Tcl, Tk and Expect are listed here and when you've selected a relevant book we'll link you on to Amazon to order.

Other Examples
This example comes from our "Other Facilities in Tcl" training module. You'll find a description of the topic and some other closely related examples on the "Other Facilities in Tcl" module index page.

Full description of the source code
You can learn more about this example on the training courses listed on this page, on which you'll be given a full set of training notes.

Many other training modules are available for download (for limited use) from our download centre under an Open Training Notes License.

Other resources
• Our Solutions centre provides a number of longer technical articles.
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