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--- en:docs:cmd:other:redir [2014/05/24 05:16] – created valerius
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-===== Redirection and Piping ====
-This section covers **redirection** and **piping**. You can use these features to change how CMD.EXE and some application programs handle input and output.
-Internal commands and many external programs get their input from the computer's **standard input* device and send their output to the **standard output** device. Some programs also send special messages to the **standard error** device. Normally, the keyboard is used for **standard input** and the video screen for both **standard output** and **standard error**.
-Redirection and piping allow you to change these assignments temporarily.
-[[Redirection]] changes the standard input, standard output, or standard error device for a program or command from the default device (the keyboard or screen), to another device or to a file.
-[[Piping]] changes the standard output and / or standard error device so that the output of one command becomes the standard input for another program or command.