Difference between revisions of "Chapter 6: Shell Redirection"

From Linux Shell Scripting Tutorial - A Beginner's handbook
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Almost all commands produces the output on screen or take input from the keyboard, but in Linux it is possible to send output to a file or to read input from a file. Each shell command has its own input and outputs. Before  a  command  is executed, its input and output may be redirected using a special notation interpreted by the shell. For example, sending output of date command to a file instead of to the screen. Changing the default path of input or output is called redirection.
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Objectives:
 
Objectives:
* Redirection - input and output
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* Redirection - input and output.
 
* Sending input and output to files.
 
* Sending input and output to files.
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* Redirecting stdout and stderr.
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* Reading and writing from the file descriptors (fd).

Latest revision as of 10:54, 22 September 2009

← Command substitutionHomeInput and Output →

Objectives:

  • Redirection - input and output.
  • Sending input and output to files.
  • Redirecting stdout and stderr.
  • Reading and writing from the file descriptors (fd).