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question about FIFO

Posted on 2001-08-01
Medium Priority
Last Modified: 2010-05-18
  what FIFO means in Linux world,what's the function of i
t,and,when should i use "mkfifo" command to deal with stuf
fs about FIFO ??----this is a question of concept.thanks
Question by:wingboad
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Expert Comment

ID: 6344630
A fifo (first-in first-out) in this context is a named pipe. An example of an unnamed pipe would the '|' character if you did 'rpm -qa | grep ^gnome '.

With a named pipe you do something like

mkfifo testpipe           (create)
echo 1 > testpipe &       (send some data)
cat testpipe              (read from pipe)    
rm testpipe               (remove pipe)


Author Comment

ID: 6347010
ok,but who will use this FIFO,i am a network administrator,
maybe only developer will use this to exchange data from di
fferent processure,right?

Accepted Solution

ifincham earned 20 total points
ID: 6353735

In the above context, yes - it would be used by developers. However, as far as I understand, fifos are used in writing device drivers in the context of buffers. For example, modem buffers. As such, you may well come across fifos in the networking arena.


Author Comment

ID: 6354609
ok,thanks a lot

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