Howdy,
I'm trying to figure out how to move multiple files based on their creation date. If anyone can enlighten me it would be most appreciated!!
Thanks!
:D (1 Reply)
Hi All,
I have a directory which has crores of files since from 2003 till now. I want to move only the 2003 files to another directory. Please help.
Thanks (2 Replies)
Dear friends..
I have the below listing of files under a directory in unix
-rw-r--r-- 1 abc abc 263349631 Jun 1 11:18 CDLD_20110603032055.xml
-rw-r--r-- 1 abc abc 267918241 Jun 1 11:21 CDLD_20110603032104.xml
-rw-r--r-- 1 abc abc 257672513 Jun 3 10:41... (5 Replies)
hi
i have to move files and send an email and attached the bad files to inform the developer about that.
#!/bin/ksh
BASE_DIR=/data/SrcFiles
cd $BASE_DIR
## finding the files from work directory which are changed in 1 day
find -type f -name "*.csv" –ctime 0 > /home/mydir/flist.txt
##... (14 Replies)
Hi,
I need a script that moves files based on date to a folder. The folder should be created based on file date. Example is :
Date file name
----- --------
Oct 08 07:39 10112012_073952.xls
Oct 09 07:39 10112012_073952.xls
Oct 10 07:39 ... (6 Replies)
Hi All,
I have multiple files in the folder, I want to move those files into the other folder on based of name
File names:
Template_server1_01==>
Template_server1_02==>To one directory /Server1
Template_server1_03==>
Template_server2_01==>
Template_server2_02==>To one... (9 Replies)
Hi all
I am trying to loop through a directory of files using a given search pattern. some of the files will be duplicated due to the pattern, but of the duplicate files i wanted to move the older files to another location.
Is there any straightforward way of doing this ?
One of ways I... (1 Reply)
I'm wanting to write a bourne shell script that takes in two command line arguments - a directory and a file. With this I want to return a list of files within the directory that are older (based on creation date) than the given file, and print the number of files that have not been listed (they... (4 Replies)
Discussion started by: britty4
4 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)