hi;
i have a file.txt and its 9th, 10th and 11th line lines are:
RbsLocalCell=S2C1 maxPortIP 4 (this is 9th line)
RbsLocalCell=S3C1 maxPortIP 4 (this is 10th line)
RbsLocalCell=S1C1 ... (11 Replies)
Please help me how can I display every nth field present in a "|" delimited file.
Ex: If a have a file with data as a|b|c|d|e|f|g|h|k|l|m|n
I want to display every 3rd feild which means the output should be
c
f
k
n
Please help me. (1 Reply)
I have an awk script to find the maximum value of the 2nd column of a 2 column datafile, but I need to find the top 5 maximum values of the 2nd column.
Here is the script that works for the maximum value.
awk 'BEGIN { subjectmax=$1 ; max=0} $2 >= max {subjectmax=$1 ; max=$2} END {print... (3 Replies)
I need to be able to search for a string in the first column and if that string exists than replace the nth column with "-9.99".
AW12000012012 2.38 1.51 3.01 1.66 0.90 0.91 1.22 0.82 0.57 1.67 2.31 3.63 0.00
AW12000012013 1.52 0.90 1.20 1.34 1.21 0.67 ... (14 Replies)
Using Awk, how can I achieve the following?
I have set of record numbers, for which, I have to replace the nth field with some values, say spaces.
Eg:
Set of Records : 4,9,10,55,89,etc
I have to change the 8th field of all the above set of records to spaces (10 spaces).
Its a delimited... (1 Reply)
Hello Members,
Need your expert opinion how to tackle below.
I have an input file that looks like below:
USS|AWCC|AFGAW|93|70
USSAA|Roshan TDCA|AFGTD|93|72,79
ALB|Vodafone|ALBVF|355|69
ALGEE|Wataniya (Nedjma)|DZAWT|213|50,550
I like output file in below format:
... (7 Replies)
Hi,
I have a huge list of archives (.gz). Each archive is about 40MB. A file is generated every minute so if I want to analyze the data for 1 hour I get already 60 files for example.
These are text files, ';' separated, each line having about 300 fields (columns).
What I need to do is to... (11 Replies)
Hello All,
I am writing a shell script with following requirement:
1. I have one input file as below
CHE01,A,MSC,INO
CHE02,B,NST,INC
CHE03,C,STM,INP
2. In shell script I have predefined array as below:
Array1={A, B, C}
Array2= {U09, C04, A054} (6 Replies)
Discussion started by: angshuman
6 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)