proc sum {arg1 arg2} {
set x [expr {$arg1 + $arg2}];
return $x
}
puts " The sum of 2 + 3 is: [sum 2 3]\n\n"
proc for {a b c} {
puts "The for command has been replaced by a puts";
puts "The arguments were: $a\n$b\n$c\n"
}
for {set i 1} {$i < 10} {incr i}