Hi All,
I am trying to extract lines bsed on pattern matching../mp straight-flow/
Extracted output should be saved in meta_string , but the code is not working in that manner,saving repeated lines. can anyone please suggest where am i going wrong.
/mp straight-flow/ {... (6 Replies)
i have a small awk script which prints the 5 columns of different o/p i want the 5th column subtracted from 100 and then display the result .. but i do not get the desired result .. I 'm using following script
awk '
BEGIN {
FS=""
RS="us"
}
{
... (3 Replies)
I'm sure this is simple and I've been looking at examples for days on end but can't seem to come to grips with awk. What I have:
mplayer -v dvd:// -identify -vo null -ao null -nolirc -nojoystick -frames 0 2>/dev/null >> /tmp/MplayerOut
ChapterStart=($(grep CHAPTERS: /tmp/MplayerOut |sed... (3 Replies)
Hi All,
Is there a way to save a range in variable for later printing?
for example write somthing like this:
awk '
/pattern1/,/pattern2/{f=range}
/pattern3/{print f}
'
I don't know excatly what "range" could be but is there a way to do this? (8 Replies)
So I have this input
1 10327 rs112750067 T C . PASS DP=65;AF=0.208;CB=BC,NCBI
1 10469 rs117577454 C G . PASS DP=2055;AF=0.020;CB=UM,BC,NCBI
1 10492 rs55998931 C T . PASS DP=231;AF=0.167;CB=BC,NCBI
1 10583 rs58108140 G A ... (3 Replies)
Hi, im new to shell scripting. i have a query for which i have searched your forums but coulndt get what i need.
i have a file that has two records of exactly the same length and format and they are comma seperated. i need to save the first and the second columns of the input file to 2 different... (11 Replies)
Hi Friends,
I have a single column data like below.
1
2
3
4
5
I need the output like below.
0
1
2
3
4
where each row (including first row) subtracting from first row and the result should print below like the way shown in output file.
Thanks
Sid (11 Replies)
Hi everyone, I had a similar question a couple days ago but my problem has gotten significantly (to me anyway) more complex.
I have two files:
File 1:
0808 166 166 62 9 0
1000fights 1 1 2 1 0
100places2visit 2 2 2 2 0
10veronica91 167 167 3 1 0
11thgorgeous 346 346 3806 1461 122... (2 Replies)
Hi Folks,
I have a file with 2 columns TAB delimited and I want to add '1' to the first column and subtract '-1' from the second column.
What I have tried so far is;
awk -F"\t" '{ $1-=1;$2+=1}1' OFS='\t' file
File
0623 0623
0624 0624
0643 0643
1059 1037
1037 1037
1038 1038... (2 Replies)
Discussion started by: pshields1984
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)