I've got 100 directories that each have 2 directories with in them.
Structered like this:
/home/domains/domain1/
through to
/home/domains/domain100/
and those 2 directories mentioned above are here:
/home/domains/domain1/directory1/
/home/domains/domain1/directory2/
through to... (7 Replies)
Hi All I am writting a script that does a comparison between files in 2 diffectent directories.
To do this I need a command that will list out only the files in a give directory and omit any sub dorectories with that directory. But I am unable to find it.
Please Help.
I tried
ls... (5 Replies)
User usrA creates dirA directory and runs chmod 777 on the directory. Can usrB issue another 777 on dirA? It appears the answer is no even if the usrA and usrB are part of the same group. I know this is a rare scenario but I just ran across it and found out that usrB receives an error when... (4 Replies)
Hi All,
I am Oracle Apps Tech guy, I have a requirement to find 777 permission is there or not for all Folders and Sub-folders
Under APPL_TOP (Folder/directory) with below conditions
i) the directory names should start with xx..... (like xxau,xxcfi,xxcca...etc)
and exclude the directory... (11 Replies)
Being a system administrator i came across a statement as " Excluding temporary directories /tmp and /var/tmp, no root owned files should be in world writable directories"
While the above statement may look straight forward but how would i check if there are any such directories in the... (7 Replies)
Hi All,
I am writing a script in which i need find the total size of all the directories that are present in a directory which are owned by a particular user.
I will explain in details
i have a dir DIR1 in which i have 5 dir's DIRA DIRB DIRC DIRD DIRE.
DIRA DIRC DIRE are owned by "eswar" i... (2 Replies)
I've tried to figure this out.
I'm only about 6 mos into my AIX admin duties, but I've got a "security" problem I can't figure out.
I've created a sub directory as follows:
drwx------ 2 root system 256 Apr 13 16:02 mike
I've logged in another session with the following user:
$ id... (2 Replies)
Hi,
I want to know if the is a way I can list the directories owned by a given user. Say i am logged in as that user.
I found out the find command lists the files owned by a certain user/group
but i want to know only the directories and if possible the permissions associated with these... (6 Replies)
First I'm new to Linux and have used the find command pretty often but this is where I've hit a snag. I have a file that contains 3500 files that I want to find and then eventually copy to my own directory (these files are all on a shared directory at work atm).
Our work computer are huge and... (2 Replies)
Hello
I have user directories that contain /temp directory.
Example folders:
/user1/temp/
/user2/temp/
/user3/temp/
How can i loop over all user directories and find all files only in their /temp folder?
Thanks a lot for help! (3 Replies)
Discussion started by: flavius42
3 Replies
LEARN ABOUT DEBIAN
bup-margin
bup-margin(1) General Commands Manual bup-margin(1)NAME
bup-margin - figure out your deduplication safety margin
SYNOPSIS
bup margin [options...]
DESCRIPTION
bup margin iterates through all objects in your bup repository, calculating the largest number of prefix bits shared between any two
entries. This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids.
For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45. That means a 46-bit
hash would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by
its first 46 bits.
The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects. Since SHA-1 hashes have 160 bits,
that leaves 115 bits of margin. Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits
with far fewer objects.
If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see if
you're getting dangerously close to 160 bits.
OPTIONS --predict
Guess the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer
from the guess. This is potentially useful for tuning an interpolation search algorithm.
--ignore-midx
don't use .midx files, use only .idx files. This is only really useful when used with --predict.
EXAMPLE
$ bup margin
Reading indexes: 100.00% (1612581/1612581), done.
40
40 matching prefix bits
1.94 bits per doubling
120 bits (61.86 doublings) remaining
4.19338e+18 times larger is possible
Everyone on earth could have 625878182 data sets
like yours, all in one repository, and we would
expect 1 object collision.
$ bup margin --predict
PackIdxList: using 1 index.
Reading indexes: 100.00% (1612581/1612581), done.
915 of 1612581 (0.057%)
SEE ALSO bup-midx(1), bup-save(1)BUP
Part of the bup(1) suite.
AUTHORS
Avery Pennarun <apenwarr@gmail.com>.
Bup unknown-bup-margin(1)