Non-printable characters are displayed in octal notation and long lines are folded. Copy the pattern space to the standard output if default out- put is not suppressed. Replace the pattern space with the next line of input. If no next line of input is available, the N command verb shall branch to the end of the script and quit without starting a new cycle and without writing the pattern space. Copy the pattern space to the standard output.
P Copy the initial segment of the pattern space through the first new-line to the standard output.
Branch to the end of the script. Do not start a new cycle. Read the contents of rfile . Place them on the output before reading the next input line. If rfile does not exist or cannot be read, it is treated as if it were an empty file, causing no error condition.