03-22-2005
Change your "exit" statements within each case to break. For the upper case/lower case, its easier to allow the user to enter either but allow your script to evaluate only 1. You can do this by typing your variable reply as either uppercase or lowercase using the typeset command. Outside of the while loop, you may break out of the loop by either changing the condition that you are using to loop or by using another break command.
Example.
typeset -u reply (this will cause the input to be shifted to upper case. So when the user enters 'a', the script reads 'A'). typeset -l is the complement to the -u flag. It changes things to lower case.
Be sure to change your case statement accordingly to match for either upper or lower case.
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break(3tcl) Tcl Built-In Commands break(3tcl)
__________________________________________________________________________________________________________________________________________________
NAME
break - Abort looping command
SYNOPSIS
break
_________________________________________________________________
DESCRIPTION
This command is typically invoked inside the body of a looping command such as for or foreach or while. It returns a TCL_BREAK code, which
causes a break exception to occur. The exception causes the current script to be aborted out to the innermost containing loop command,
which then aborts its execution and returns normally. Break exceptions are also handled in a few other situations, such as the catch com-
mand, Tk event bindings, and the outermost scripts of procedure bodies.
EXAMPLE
Print a line for each of the integers from 0 to 5:
for {set x 0} {$x<10} {incr x} {
if {$x > 5} {
break
}
puts "x is $x"
}
SEE ALSO
catch(3tcl), continue(3tcl), for(3tcl), foreach(3tcl), return(3tcl), while(3tcl)
KEYWORDS
abort, break, loop
Tcl break(3tcl)