11-25-2009
If the file is open, would "lsof" help? You could list all files opened by the process.
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1. Solaris
Hi,
I want to find out a particular disk block belong to which file. in solaris 2.8
Can anyone help.
Thanks and Regards
Bala (1 Reply)
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2. UNIX for Dummies Questions & Answers
Hi, I know that inode for each file is unique, but is it the for the directory? So far I found different directories has the same inode nubmer when you do ls -i, could some one explain why? Thanks a lot. (9 Replies)
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3. Filesystems, Disks and Memory
as kernel keeps track of user activities on a file by its INODE number and I node table .
what is the structure of Inode table. and where does this Inode table mapped into?user space or kernel space?
is the Inode Number is fixed for a file till its deletion?
thanks (1 Reply)
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4. UNIX for Advanced & Expert Users
Hi all
when I execute pmap command on one of my daemon process, I am able to see the following output.
Address Kbytes RSS Anon Locked Mode Mapped File
00010000 40 40 - - r-x-- irs026bmd
00028000 56 56 16 - rwx-- irs026bmd
00036000... (3 Replies)
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5. UNIX for Dummies Questions & Answers
How we can know number of inode present in my Disk including free and occupied.
Is there any tool or program to know how much free inode are there in inode free list . (2 Replies)
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6. Filesystems, Disks and Memory
At risk of twisting the rules to nearly the point of breaking (if you think this goes too far mods, I apologise and accept that this should be deleted), I'm hoping someone might be able to cast a little light on the following problem regarding hard links to files.
... (6 Replies)
Discussion started by: Smiling Dragon
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7. UNIX for Dummies Questions & Answers
can someone please tell me why is the filename not inlcuded in the inode of the file? (2 Replies)
Discussion started by: wowman
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8. Shell Programming and Scripting
How can I get only FileName associated with a INODE on Unix in seconds instead of minutes, as it is the case for me as shown below.
# Say I have FileDescriptor: 43, INODE: 2590784, File: abc.rdb. I want to get only filename associated with inode:2590784 and FD:43.
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9. Red Hat
Hi,
I have created a file abc.log in Redhat Linux.
Inode number for a file get changes every time i update the file using vi editor.
Is there any setting that can be made , such that inode number never gets changed?
Or if we cannot restrict from inode number getting changed , is... (9 Replies)
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10. Solaris
Some one please help me to find deleted file name, if I am having inode number in Solaris without using any 3rd party tool.
Thanks :) (3 Replies)
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FIFO(7) Linux Programmer's Manual FIFO(7)
NAME
fifo - first-in first-out special file, named pipe
DESCRIPTION
A FIFO special file (a named pipe) is similar to a pipe, except that it is accessed as part of the file system. It can be opened by multi-
ple processes for reading or writing. When processes are exchanging data via the FIFO, the kernel passes all data internally without writ-
ing it to the file system. Thus, the FIFO special file has no contents on the file system; the file system entry merely serves as a refer-
ence point so that processes can access the pipe using a name in the file system.
The kernel maintains exactly one pipe object for each FIFO special file that is opened by at least one process. The FIFO must be opened on
both ends (reading and writing) before data can be passed. Normally, opening the FIFO blocks until the other end is opened also.
A process can open a FIFO in nonblocking mode. In this case, opening for read only will succeed even if no-one has opened on the write
side yet, opening for write only will fail with ENXIO (no such device or address) unless the other end has already been opened.
Under Linux, opening a FIFO for read and write will succeed both in blocking and nonblocking mode. POSIX leaves this behavior undefined.
This can be used to open a FIFO for writing while there are no readers available. A process that uses both ends of the connection in order
to communicate with itself should be very careful to avoid deadlocks.
NOTES
When a process tries to write to a FIFO that is not opened for read on the other side, the process is sent a SIGPIPE signal.
FIFO special files can be created by mkfifo(3), and are indicated by ls -l with the file type 'p'.
SEE ALSO
mkfifo(1), open(2), pipe(2), sigaction(2), signal(2), socketpair(2), mkfifo(3), pipe(7)
COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2008-12-03 FIFO(7)