Linux is provided with input/output redirection capabilities to facilitate tasks. It gives you the ability to manipulate the I/O streams using the following three types of streams:
- Standard input (stdin): In this stream, the input is taken from the keyboard
- Standard output (stdout): This stream displays the result directly on the screen
- Standard error (stderr): This is another type of standard output stream, but it carries error information instead of showing the output on the screen
