Google Answers: unix (operating system)

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Q: unix (operating system) ( No Answer, 0 Comments )

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Subject: unix (operating system)
Category: Computers > Operating Systems
Asked by: vpb-ga
List Price: $5.00

Posted: 26 Dec 2002 02:30 PST
Expires: 16 Jan 2003 03:50 PST
Question ID: 133446

(a) why in general is redirection useful?     
     (b)  explain the role of file descriptors in redirection as fully
            as you   can 
              
      (c) name three UNIX objects accessible via a file descriptor  
     
     (d) show how the following sequence of four operations affect a user's 
        file descriptors:
            login
            close(1)
            open myfile
            close myfile

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