Hi,
I have some files, with some extra lines in weird characters on the top and bottom of the. I want to get rid of those line. Is there a way I can do that?
example of the input file. I want to get rid of those lines in bold
... (8 Replies)
Hi...
I am quite new to Unix and would like an issue to be resolved.
I have a file in the format below;
4,Reclaim,ECXTEST02,abc123,Harry Potter,5432 6730 0327 5469,0603,,MC,,1200,EUR,sho-001,,1,,,abc123,1223
I would like my output to be as follows;
4,Reclaim,ECXTEST02,abc123,Harry... (4 Replies)
for diskname in $(lspv |awk '{print $1}')
do
lquerypv -h /dev/|awk '/'$diskname'/ { print ; exit }'
done
No output is returning from the loop.
I think awk put an extra space to the command - lquerypv -h /dev/
so that the command is executed as i.e. lquerypv -h /dev/ hdisk230 with a space... (7 Replies)
I have used m4 in the past to generate source code where aesthetics and space were of no consequence . Now I am using it to generate script and program templates .
So here is an excerpt from my m4 file for producing a generic bash script:
dnl `$Id$'
define(`START_SCRIPT',`#!/bin/bash... (8 Replies)
Hi
I am using cat <filename> command in one of my datastage job(Command Activity). It is giving actual value but giving extra line.
Eg: Displayed Output: 1 and showing extraline(Eg: 1
) I had checked even wc -c it is giving one character extra.
If the file contains 11. wc -c says 3. ... (3 Replies)
Guys, I have a file that contains entries like this:
LaxOrdID=19220288<8>
LaxOrdID=19220288
I would like to remove <> and the values inside it anywhere its found.
How? (2 Replies)
Hi,
Since today, with csh or tcsh, if I do 'ls files* > list',
every lines end with an extra space!
What happenned?
What can I do to go back when there was no extra space?
If I change to bash, there's no extra space.
Thanks,
Patrick
---------- Post updated at 03:19 PM... (1 Reply)
Hi ,
I have file like this..
aaa|bbbb|cccc|dddd|fff|dsaaFFDFD|
Adsads|sas|sa|as|asa|saddas|dsasd|sdad|
dsas|dss|sss|sss|ddd|dssd|rrr|fddf|
www|fff|refd|dads|fsdf|00sd|
5fgdg|dfs00|d55f|sfds55|445fsd|55ds|sdf|
so I do no have any fix pattern and I want to remove extra... (11 Replies)
Hi Gurus,
I have a file which contains some special char or space.
when using cat -evt I can see the file as following:
0,"0000","abc/def aaa ... (6 Replies)
Hello,
I have a requirement where i have to spool some data to a file. i have achived the desired target but m facing one issue. i have attached the script and the output.
i checked the data length in the table but it is only 45 for column 1.
can you tell me how to remove these extra... (4 Replies)
Discussion started by: Mohammed_Tabish
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)