MKNOD(8) System Manager's Manual MKNOD(8)NAME
mknod - create a special file
SYNOPSIS
mknod file [b] [c] major minor
mknod file p
EXAMPLES
mknod /dev/plotter c 7 0
# Create special file for a plotter
mknod /dev/fd3 b 2 3
# Create a device for diskette drive 3
mknod /tmp/stream p # Create a named pipe
DESCRIPTION
Mknod creates a special file named file , with the indicated major and minor device numbers. The second argument specifies a block spe-
cial, a character special, or a named pipe. Named pipes do not have device numbers so they are omitted.
SEE ALSO mkfifo(1), mknod(2).
MKNOD(8)
Check Out this Related Man Page
mknod(1M) System Administration Commands mknod(1M)NAME
mknod - make a special file
SYNOPSIS
mknod name b major minor
mknod name c major minor
mknod name p
DESCRIPTION
mknod makes a directory entry for a special file.
OPTIONS
The following options are supported:
b Create a block-type special file.
c Create a character-type special file.
p Create a FIFO (named pipe).
OPERANDS
The following operands are supported:
major The major device number.
minor The minor device number; can be either decimal or octal. The assignment of major device numbers is specific to each system. You
must be the super-user to use this form of the command.
name A special file to be created.
USAGE
See largefile(5) for the description of the behavior of mknod when encountering files greater than or equal to 2 Gbyte ( 2**31 bytes).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO ftp(1), in.ftpd(1M), mknod(2), symlink(2), attributes(5), largefile(5)NOTES
If mknod(2) is used to create a device, the major and minor device numbers are always interpreted by the kernel running on that machine.
With the advent of physical device naming, it would be preferable to create a symbolic link to the physical name of the device (in the
/devices subtree) rather than using mknod.
SunOS 5.10 16 Sep 1996 mknod(1M)
Can someone please tell me what the command mknod does and what it's syntax is? I can't find it in my "Unix for dummies" book or "Unix in s nutshell". I found it in an existing script that I want to copy, but I want to understand what I am doing. The script is going to do a full export of an... (3 Replies)
I'm trying to use the "mknod" call in C to create a clone of /dev/null. I am stumped as to the final parameter I should provide to "mknod()". I am supposed to give it a type dev_t, which specifies a major & minor number. I want to specify major 3, minor 1, but how can I do this?
dev_t seems to... (2 Replies)
this is existing issue for this nfs client, which mounts windows exported
file system, and this is only one UNIX box has this problem, other boxes are
fine.
Here is from messages file.
Jan 24 03:11:10 venus nfs: NFS mknod failed for
server arc: error 2 (RPC: Can't decode result)
Jan... (0 Replies)
Hello All,
Friends i know mknod with -p option is used to create FIFO special file.:p
But i want to know some circumstance/scenario where these are used.:wall:
Actually i want to know where i can use it in real time.
Please advise.:) (3 Replies)
Hi Guys,
On my AIX server , I have this file "mknod" present in the /etc/ directory. When i try opening it , I dont find
any ascii characters. It shows some encryption/binary format which is not readable. Is it any executable ? what is the
purpose of having this file in etc folder? what if... (2 Replies)
I need to backup my database but the files are very large and the TAR command will not let me. I searched aids and found that I could do something with the mknod, COMPRESS and TAR command using them together. I appreciate your help. (10 Replies)