I have some files with the extension
in several directories in various mountpoints(filesystems) . I would like to find and copy all these files into a single directory
.
hi all,
can u please help me in finding all ksh file in directory and including all subdirectories and then copy those files into another directory.
thanks in advance
-bali (4 Replies)
Hi All,
I am new to UNIX. I will be thankful if some one helps me.
I have to write a shell script for one of the requirement.
I have files created from Jan 2006 to March 2008.
My requirement is to write a script in such a way that
1) To find and copy(not Moving) the files created in the... (2 Replies)
I am wanting to find files within a directory that are over a certain number of days old and copy them to another directory. And unfortunately not having much luck.......is someone able to help.
Would also like to add that there are literally thousands of files that I am wanting to copy in one... (3 Replies)
I will be very grateful if someone can help me with bash shell script that does the following:
I have a list of filenames:
A01_155716
A05_155780
A07_155812
A09_155844
A11_155876
that are kept in different sub directories within my current directory. I want to find these files and copy... (3 Replies)
Hi Everybody,
i want a samll help to write a script.
i had source location with :/user/bin (bin contains subdirectories with like names emails etc and had several files in each subdirectory)
and target location with :/usr/scripts (having same subdirectories names and had some files)... (1 Reply)
Ok i have three directories
Destination - /u/dir1 (has subdirectories dir2 which also has subdirectory dir3)
Source1 - /u/test/files/dir1/dir2/dir3
Source2 - /u/out/images/dir1/dir2/dir3
What i would like to do is copy everything from Source1 and Source2 into the Destination directory.... (3 Replies)
I have a folder will a lot of documents (pdf, xls, doc etc.) which users have uploaded but only 20% of them are currently linking from my html files. So my goal is to copy only the files which are linked in my html files from my Document directory into another directory.
Eg: My documents exist... (5 Replies)
I have directory that has some billion file inside , i tried copy some files for specific date but it's always did not respond for long time and did not give any result.. i tried everything with find command and also with xargs..
even this command find . -mtime -2 -print | xargs ls -d did not... (2 Replies)
How to copy files from one directory to another directory with the subfolders copied.
If i have folder1/sub1/sub2/* it needs to copy files to folder2/sub1/sub2/*.
I do not want to create sub folders in folder2.
Can copy command create them automatically?
I tried cp -a and cp -R but did... (4 Replies)
Very new to shell scripting. Not sure if my title is correct but I will try and explain.
Directory has 100+ files with this format, " ABCD_ABC_Abc_AB0126.abc ". When a new file gets created, the 16-19 characters in the file name gets incremented by 1. Ex...todays most recent file is... (14 Replies)
Discussion started by: askvip
14 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)