Similar to the r and R commands, rb and Rb run and block the command line input until the program terminates, until it hits a breakpoint, or the target stops. While using these commands, you can still perform all interactive operations appropriate with a running program. There are useful when writing scripts that control execution of a remote program. Use rb or Rb when you want to run until you hit a breakpoint and then read the next line of a script file. See also the Continue and Block command cb, r, and R.