MKFIFO(1) BSD General Commands Manual MKFIFO(1)NAME
mkfifo -- make fifos
SYNOPSIS
mkfifo [-m mode] fifo_name ...
DESCRIPTION
mkfifo creates the fifos requested, in the order specified. By default, the resulting fifos have mode 0666 (rw-rw-rw-), limited by the cur-
rent umask(2).
The options are as follows:
-m Set the file permission bits of newly-created fifos to mode, without respect to the current umask.
The mode is specified as in chmod(1). In symbolic mode strings, the ``+'' and ``-'' operators are interpreted relative to an assumed
initial mode of ``a=rw''
mkfifo requires write permission in the parent directory.
mkfifo exits with 0 if successful, and with >0 if an error occurred.
LEGACY DESCRIPTION
In legacy mode, the fifo's file permission bits are always limited by the current umask.
For more information about legacy mode, see compat(5).
SEE ALSO mkdir(1), rm(1), umask(1), mkfifo(2), umask(2), compat(5), mknod(8)STANDARDS
The mkfifo utility is expected to be IEEE Std 1003.2-1992 (``POSIX.2'') compliant.
HISTORY
mkfifo command appeared in 4.4BSD.
4.4BSD January 5, 1994 4.4BSD
Check Out this Related Man Page
MKFIFO(1) BSD General Commands Manual MKFIFO(1)NAME
mkfifo -- make fifos
SYNOPSIS
mkfifo [-m mode] fifo_name ...
DESCRIPTION
The mkfifo utility creates the fifos requested, in the order specified.
The options are as follows:
-m Set the file permission bits of the created fifos to the specified mode, ignoring the umask(2) of the calling process. The mode
argument takes any format that can be specified to the chmod(1) command. If a symbolic mode is specified, the op symbols ``+''
(plus) and ``-'' (hyphen) are interpreted relative to an assumed initial mode of ``a=rw'' (read and write permissions for all).
If the -m option is not specified, fifos are created with mode 0666 modified by the umask(2) of the calling process. The mkfifo utility
requires write permission in the parent directory.
DIAGNOSTICS
The mkfifo utility exits 0 on success, and >0 if an error occurs.
STANDARDS
The mkfifo utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compliant.
SEE ALSO mkdir(1), rm(1), mkfifo(2), mknod(2), mknod(8)HISTORY
The mkfifo command appeared in 4.4BSD.
BSD January 5, 1994 BSD
Working out of AIX 4.3's .
have machine (a) and machine (b)
umask on both machines is 'umask 022'.
as user root (these are trivial machines hence dummies like me have root access) when i Ftp files from a to b , why is it that I loose the original file permissions. After the ftp I have to chmod... (1 Reply)
Gurus,
I did my research (on google, this site and my local library) but I am *still* lost. I am trying to teach myself about `named pipes` playing around with MKFIFO (Why not?).
(1) It seems MKNOD is reserved to ROOT whereas MKFIFO is accessible to all users. Am I correct? If the answer is... (20 Replies)
Hi, so I've got this program("main") that fork executes another ("user"). These programs communicate through fifos.
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I changed the umask in /etc/security/user to 027.
I changed the umask in /etc/profile to 027.
My current shell is ksh.
My .profile doesn't make any changes to umask or call other scripts that change umask.
Running AIX 5.3
I still get a umask of 022 instead of the expected 027. I have no... (1 Reply)
Hi,
Will umask work with find command ?
I was trying to do
find /newdir/apps/ -type d -name 'par' -print -exec umask 117 {} \;
it returns with
find: umask: Permission denied ,
I've checked permission of all the directores, they have 770.
however, If I use the command
find... (4 Replies)
hai guys ,
i am having problem in getting the knowledge about umask.
actually when i am putting command as umask some value is coming like 0022 by defalut.
we can change its value also.
but the main thing is thye file permisiion actually depends upon umask.how is it depends upon umask i want to... (6 Replies)
hi.
I want to set the default permission for ever new created file to rwxrwxrwx ..
I try umask 000 but it does't not give the execute persmission , is there any way to set the default permission for every new created file to rwxrwxrwx ..
thankx (9 Replies)
Due to urgent requirement to resolve some permission issues , I wish
to set solaris 8 server so that any file written is on 777 .
I guess need to set umask , how to set it ?? (7 Replies)
Hi,
Please, let me know how the umask is working? As per my understanding is aprt from subtracting from 666/777, logical gate operation is performing.
Ex: If I set uname 011, it gave the permission like 666 for file. Request you to explain which gate's operation performed.
$uname 011... (4 Replies)
Hi Guys,
I want to know is there any method to create a file having 777 permission. I am aware of umask, since it is only giving max. 666 permission for files this is not fulfilling my needs.
Thanks in advance
---------- Post updated at 12:49 AM ---------- Previous update was at 12:31... (10 Replies)
Hi,
I want to set umask value only for vi editor.
If I create new file using vi editor, then automatic permission should be 777.
I want to set umask 000.
Please help me.
Thanks in advance (2 Replies)
Hey Guys,
First post here. I just started learning UNIX a few weeks ago.
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I have a share... (15 Replies)
Hi All,
Seeking for your assistance on how to lock the script if it's running? meaning anybody can't run my script while it's running.
Please advise,
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Hi All
please help in this ..
I have application user called: startsys
umask already defined in the profile of application user as umask 033.
Actually application creating files once the file getting create it created with different permission which is not the same of the defined... (8 Replies)