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Redirecting output streams

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Normally, when you execute a Unix command, its output goes to your display screen. For example:

      yourname@yourcomputer<23>% man date

You can redirect the output stream of any process to somewhere else instead of to your display screen.

To do this, after the name of the command and any arguments, type the ``greater-than'' symbol (>), and then type a name. A file will be created by this name, and the output of that command will be placed in that file.

For example:

      yourname@yourcomputer<24>% date >timestamp
This would write the current date and time into a file named timestamp. We could then display the contents of this file by typing:
      yourname@yourcomputer<25>% cat timestamp
      Sat Jan 28 15:03:08 MST 1995

Next: Redirecting input streams
See also: What is a Unix command?
Previous: What is a command line argument?
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John Shipman, john@nmt.edu
Last updated: 1996/01/06 21:54:47 UT
URL: http://www.nmt.edu/tcc/help/unix/outredirect.html
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