Pause script in TCL

proc anykey {{msg "Hit any key: "}} {
    set stty_settings [exec stty -g]
    exec stty raw -echo
    puts -nonewline $msg
    flush stdout
    read stdin 1
    exec stty $stty_settings
    puts ""
}
puts 1
anykey
puts 2

Another suggestion:

proc pause {{message "Hit Enter to continue ==> "}} {
    puts -nonewline $message
    flush stdout
    gets stdin
}

pause "Hurry, hit enter: "; # Sample usage 1
pause;                      # Sample usage 2, use default message