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What is standard output in bash?

Standard output is generally used for "normal" output from a command. For example, ls lists files, so the files are sent to STDOUT. STDERR root@server~# ls anotherfile ls: cannot access 'anotherfile': No such file or directory. Standard error is (as the name implies) used for error messages.


What are Standardised outputs?

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. For example, the file rename command (variously called mv, move, or ren) is silent on success.

What does standard output mean in Linux?

Stdout, also known as standard output, is the default file descriptor where a process can write output. In Unix-like operating systems, such as Linux, macOS X, and BSD, stdout is defined by the POSIX standard. Its default file descriptor number is 1. In the terminal, standard output defaults to the user's screen.

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.

What is standard input and standard output in Linux?

In Linux, stdin is the standard input stream. This accepts text as its input. Text output from the command to the shell is delivered via the stdout (standard out) stream. Error messages from the command are sent through the stderr (standard error) stream.

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