b [line] [condition]
                   Set a breakpoint before the given line.  If a condition is specified, it&t&’s evaluated each time the statement is reached: a breakpoint
                   is taken only if the condition is true.  Breakpoints may only be set on lines that begin an executable statement.  Conditions don&n&’t
                   use "if":

                       b 237 $x > 30
                       b 237 ++$count237 < 11
                       b 33 /pattern/i