Hi
i know this Q might seem retarded... yet, i can't find a solution.
i need a bash script that recursively prints like this:
mydir/
myfile1 114 06 Aug 2006
myfile2 234 14 Jun 2006
mydir/mysubdir1/
myfile3 32 18 Feb 2006
mydir/mysubdir1/mysubsubdir1/
myfile4 5324 06 Aug 2006
... (2 Replies)
Hi
I am trying to display the home directory of another user. I dont have the permissions to change into their directory and wonder is it possible to display their directory
eg I cant change directory to john but I am trying to display something like /home/John.
If anyone can help I would... (3 Replies)
hi experts(novice people can stay away as it is no child's game),
i am developing a script which works like recycle bin of windows.
the problem i am facing is that when ever i am trying to delete a file which is situated in parent directory or parent's parent directory i am unable to... (1 Reply)
Hello!!
I have directories from 2008, with files in them. I want to create a script that will find the directoried from 2008 (example directory:
drwxr-xr-x 2 isplan users 1024 Nov 21 2008 FILES_112108), delete the files within those directories and then delete the directories... (3 Replies)
Hi,
Edit: The title should really read listing files in a non-parent directory, sorry!
Im trying to get one of my Bash scripting assignments done for uni and now I'm stuck. This is probably going to be one of those kick yourself moments but, in my script I have a variable usrDir which... (2 Replies)
Hi,
(Apologies, I'm sure I'm not the first person to raise this question but so far in my searches haven't found a good answer).
I would like to output a listing per line of filename (including full path) and 'last updated' timestamp. e.g:
Z:\dir1\file1.txt 01/02/2010 10:43... (5 Replies)
I am very new to unix as well as shell scripting.
I have to write a script for the following requirement. In have to list all the files in directory and its sub directories along with file path and size of the file
Please help me in this regard and many thanks in advance. (3 Replies)
Dear Members,
I have a list of xml files like
abc.xml.table
prq.xml.table
...
..
.
in a txt file.
Now I have to search the file(s) in all directories and sub-directories and print the full path of file in a output txt file.
Please help me with the script or command to do so.
... (11 Replies)
I have searched this quite a long time but couldn't find the right method for me to use. I need to assign read write permission to the user for specific directories and it's sub directories and files. I do not want to use ACL. I do not want to assign user the same group of that directories too.... (0 Replies)
Discussion started by: blinkingdan
0 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)