What is a standard output in Linux?

What does standard output mean?

Standard output (stdout) Standard output is a stream to which a program writes its output data. The program requests data transfer with the write operation. Not all programs generate output.

What is standard output in bash?

STDOUT. STDOUT - the standard output of the shell. By default, this is the screen. Most bash commands output data STDOUT to the console, which causes it to appear in the console. The data can be redirected to a file by attaching it to its contents using the command >> .

What is standard input output?

The standard input device, also referred to as stdin , is the device from which input to the system is taken. Typically this is the keyboard, but you can specify that input is to come from a serial port or a disk file, for example.

What is standard output and standard error?

Your screen is the standard output, sometimes denoted as stdout . By default, commands take input from the standard input and send the results to standard output. Standard error, sometimes denoted as stderr, is where error messages go. By default, this is your screen.