In
Linux, inputs to and outputs from programs are known as streams. The
input usually comes from the keyboard and the output goes to the screen.
You can redirect these input and output streams to come from or go to
other sources.
Linux shells use three standard streams:
Linux shells use three standard streams:
- standard input – this is usually the input from the keyboard. For example, commands are executed by typing them.
- standard output – displays the output from commands, usually to the terminal.
- standard error – displays error output from commands. It is usually sent to the same output as standard output, but it can be redirected.
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