C                 101 kernel/console.c     if(c == C('D')){  // end-of-file
C                 141 kernel/console.c   case C('P'):  // Print process list.
C                 144 kernel/console.c   case C('U'):  // Kill line.
C                 151 kernel/console.c   case C('H'): // Backspace
C                 168 kernel/console.c       if(c == '\n' || c == C('D') || cons.e-cons.r == INPUT_BUF_SIZE){