Hi,
When we "grep" for a word in a file, it returns the lines containing the word that we searched for. Is there a way to display only the words and not the entire line containing them.
Thanks
Ananth (6 Replies)
hi, consider the below line in a text file,
'Y',getdate(),'N','V',NULL .....
'N',getdate(),'Y','D',NULL .....
'Y','N','Y',getdate(),'Y','D',NULL ....
as u see above, i want only the second word after the getdate() word...
getdate() will not come 2nd word alwys it may be any position but i... (11 Replies)
Hi all,
I want to delete all lowercase characters from my file, but only strings of length 7 and more.
For example, how can I go from:
JHGEFigeIGDUIirfyfiyhgfoiyfKJHGuioyrDHG
To:
JHGEFigeIGDUIKJHGuioyrDHG
There should be a trick to add to sed 's///g', but I can't figure it out.... (2 Replies)
ok, so this is proving to be kind of difficult even though it should not be.
say for instance I want to grep out ONLY the word fkafal from the below output, how do I do it?
echo ajfjf fjfjf iafjga fkafal foeref afoafahfia | grep -w "fkafal"
If i run the above command, i get back all the... (4 Replies)
Hi,
I have input file as below. Can you help me?
inac_4y;0;2;Balance;200;1;1;
0;2;Balance;100;1;
0;inac_nq;0;1;Balance;100;1
desired output
Balance;200
Balance;100
Balance;100
-Suresh
Please use and tags when posting code, data or logs etc. to preserve formatting... (5 Replies)
Hi all,
FileOne
family balance >>>>>
0 0
0 0
java.io.FileNotFoundException: Settings.xml (No such file or directory)
at java.io.FileInputStream.open(Native Method)
..
....
.....
.....
java.lang.NullPointerException
...
.....
......
Stacktrace:
at... (2 Replies)
I want to search a bunch of files and list only those containing a minimum number of pattern matches. So if I want to identify files containing 3 (or more) instances of the pattern "said:" and I have file1 that contains the lines:
He said:
She said:
and file2 that contains the lines:
He... (3 Replies)
Hi
can we grep for a word and print the next word of the greped word?
ex:- create or replace function function_name
create function function_name
we should search for word "function" and output next word "function_name" from both lines. (3 Replies)
I have a file input.txt which have loads of weird characters, html tags and useful materials. I want to display 35 characters after the word description excluding weird characters like $$#$#@$#@***$# and without html tags in the new file output.txt. Help me. Thanx in advance.
My final goal is to... (11 Replies)
I have a file input.txt which have loads of weird characters, html tags and useful materials. I want to display 35 characters after the word "description" excluding weird characters like $&lmp and without html tags in the new file output.txt. Help me. Thanx in advance. I have attached the input... (4 Replies)
Discussion started by: sachit adhikari
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)
03-09-2016
