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What is standard output command in Linux?

Contents
  1. What is a standard output in Linux?
  2. What is standardized output?
  3. What is standard output in bash?
  4. What is standard input command 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. 16 нояб. 2019 г.


What is a standard output in Linux?

Standard output, sometimes abbreviated stdout, refers to the standardized streams of data that are produced by command line programs (i.e., all-text mode programs) in Linux and other Unix-like operating systems.

What is standardized output?

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?

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 is standard input command 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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