How to Calculate number of files under filesystem

[ramkumar]

Hi all
can anybody tell how to calculate the total number of files under a filesystem .

[Sudeesh]

du -x /usr | wc -l

will give you total numeber of files on device /usr.


Sudeesh

[ramkumar]

hi Sudeesh
this will not do . du -x will give you the size not the number of files . please go through man page of du .


ram

[Rajeev Shukla]

To find the number of files in a directory, cd to that directory and do
ll |wc -l

the number of files is one less than the returned value

cheers
Rajeev

[Sudeesh]

pls see the wc -l at the end sfter pipe


Sudeesh

[Sudeesh]

small spelling mistake in previous post change it to 'after' pls.....

[rx260-11]/ >du -x /usr | wc -l
1388
[rx260-11]/ >


Sudeesh

[Alex Lavrov.]

Simpliest way to do this:


find . | wc -l


Just lists all the files under all directories and then counts the output.


Regards.

[renarios]

A find . would also count all directories. I would try:
find . -xdev -type f | wc -l
This will give a count off all files on the local filesystem.

Cheerio,

Renarios

[Muthukumar_5]

You can get files count under specific file system with -xdev option on find command.

find -xdev -type f | wc -l

Get the file system patch with bdf command.

HTH.

[Steve Post]

find . -print | wc -l

Directories are files too. That is unless you don't feel like counting them. Otherwise this would work.

Let's break it down.
find . <--means find everything in this directory and below. So you would want to be at the top of the filesystem.

"-print" outputs what the find command finds.

wc -l <--this counts the lines from what goes into it. The find command spits out one file per line. So by counting the lines, you are counting the files.

"-xdev" ? I never heard of this. It's not in the man page for the find I have. But I'm using hpux11.0. Perhaps that's in BSD, Linux, AIX, or HPUX11i.

One last gocha....
You have two filesystems.

/disk1 and /disk1/a/b.
The filesystem mounted to /disk1/a/b is a filesystem of it's own. Should it be counted in the total of files for /disk1? No I don't think so. It is its own filesystem. So the total files on /disk1 are the total files found on /disk1 minus the total files found in /disk1/a/b. Do you have this case? Everybody has this case.

/opt is mounted to the / filesystem.
/var is too.
hey...just about everything is.
So how many files are in in root (/)?

Run bdf to see what filesystems are mounted to the system.

[Alex Lavrov.]

Well, I have both, 11.11 and 11.00 and there is "-xdev" on both of them.

[Steve Post]

that's great.
what is it?

[Steve Post]

AH! Nevermind.
I just had to run the man on a more recent hpux box.

It tells find to avoid crossing into filesystem mount points. That's what I was just talking about. So that means you CAN run "find / -xdev -print | wc -l" to get just the files under the ROOT filesystem.
NICE!

[Alex Lavrov.]

From man:

-xdev A position-independent term that causes find
to avoid crossing any file system mount
points that exist below starting points
enumerated in pathname_list. The mount point
itself is visited, but entries below the
mount point are not. Always true.

[Steve Post]

Thank you Alex.
Sorry I was so short (in text).

Steve Post

[Leif Halvarsson_2]

Hi,
A "fast" method is du -i (see man pages for du). It actually reports number of used inodes.

[john korterman]

Hi,
you could just execute
# bdf -i
with or without a mount point as argument. The number of files under a filesystem should be equivalent to the number of i-nodes used (iused).

regards,
John K.

[V. Nyga]

@Steve:

from 'man find' (btw. from 11.0):

-xdev
A position-independent term that causes find
to avoid crossing any file system mount
points that exist below starting points
enumerated in pathname_list. The mount point
itself is visited, but entries below the
mount point are not. Always true.

HTH
Volkmar

[Alex Lavrov.]

Btw, ramkumar, you got here almost every possible way to count files in the directory, so it will be very nice to assign points to the answers that helped you the most ;-)

Alex.

[Leif Halvarsson_2]

Hi,
Sorry, my previous reply was wrong. It should (of course) be "df -i" not "du -i".

[Sandman!]

simplest to do would be...

# find -type f | wc -l