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Old 04-05-2002, 09:47 AM   #1
Rex_chaos
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Registered: Aug 2001
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"mknode /tmp/dev.0" ?


Can anyone tell me what does this statement for?
Thanks
 
Old 04-15-2002, 03:33 PM   #2
nejoom
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Hi Rex

You probably mean:
[user] mknod /tmp/dev.0

mknod is a command to make a special file.

On unix "special files" are files that represent (usually) hardware devices. (=definition)

Special files are indicated when issueing the following command:

[nejoom@fire dev]$ cd /dev
[nejoom@fire dev]$ ls -la fd0 zero
brw-rw---- 1 nejoom floppy 2, 0 Aug 30 2001 fd0
crw-rw-rw- 1 root root 1, 5 Aug 30 2001 zero
^
|
+------ special file character
b = block (eg floppy)
c = character (eg terminial line)

Writing to a special file sends data directly to the hardware"
]$ cat mytext.txt > /dev/fd0

... reading the special file gets data directly from hardware

In practice most of these special files are located in your /dev directory (devices), and have been made for you at installation.

If your /dev doesn't contain the device you need (if your into attaching esoteric devices), then you might need to use the mknod command.

Take a look at the following if your into this type of stuff:
http://www.tldp.org/LDP/sag/x797.html
 
  


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