When I print (cat) my log file, the following shows up
Executing sftp ...
sftp> lcd /home/abc
/home/abc
sftp> put test.xml
test.xml | 20MB | 620kB/s | TOC: 00:00:33 | 100%
sftp> quit
test.xml transferred
then I try to grep "100%" from this file where I got "grep:... (1 Reply)
Hi. I have a script which is deleting files with a particular extension and older than 45 days.The code is:
find <path> -name "<filename_pattern>" -mtime +45 -exec rm {} \;
But the problem is that some important files are also getting deleted.To prevent this I have decide to make a dummy... (4 Replies)
Hi ,
I have this type of files:-
BGH.28OCT2008.00000001.433155.001
BGH.28OCT2008.00000002.1552361.001
BGH.28OCT2008.00000003.1438355.001
BGH.28OCT2008.00000004.1562602.001
Inside them contains the below:
5Discounts
6P150 - Max Total Usage RM150|-221.00
P150 EPP - Talktime RM150... (5 Replies)
How do I remove a backslash character \ from a file?
I have used
sed -e "s|\||g" filename > newfile
I have done several permutations on this to no avail such as:
sed -e "s|`\`||g" filename > newfile
sed -e "s|""\""||g" filename > newfile
What am I doing wrong?:confused:
... (2 Replies)
We have a files in FTP server..... after getting the files from FTP by
mget *.*
i hav to remove all files (multiple files) at once...
is there any command to delete multiple files at once (2 Replies)
Friends,
I want to remove charecters from multiple .txt files.
Foe example :
In this .txt files there are many "ctrl m" present in last of each line in one .txt file.
I want to remove "ctrl m" from each line from all .txt files.
Need your help regarding this. (4 Replies)
Hello,
We have a client who has had an FTP injection attack on their account. Over 600 files have this code added to the files:
<script>var t="";var... (10 Replies)
Hi Gurus,
I have below files in one directory. the file name has date and time portion which is exactly the file be created. I need keep only lasted created file which is abc_20140101_1550 and remove rest of the file.
abc_20140101_1300
abc_20140101_1200
abc_20140101_1400
abc_20140101_1500... (2 Replies)
Hello.
I use this command :
rsync -av --include=".*" --dry-run "$A_FULL_PATH_S" "$A_FULL_PATH_D"The data comes from the output of a find command.
And no full source directories are in use, only some files.
Source example... (2 Replies)
Discussion started by: jcdole
2 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)