06-24-2010
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi folks,
I have a text file that I need to parse, and I cant figure it out. The source is a report breaking down softwares from various companies with some basic info about them (see source snippet below). Ultimately what I want is an excel sheet with only Adobe and Microsoft software name and... (5 Replies)
Discussion started by: rowie718
5 Replies
2. Shell Programming and Scripting
Hi Everyone,
# cat 1
a
b b
cc
1
2
3 3 3
4
55 5
a
b (2 Replies)
Discussion started by: jimmy_y
2 Replies
3. Shell Programming and Scripting
Hi,
my xml files looks something like this
<Instance Name="New York">
<Description></Description>
<Instance Name="A">
<Description></Description>
<PropertyValue Key="false" Name="Building A" />
</Instance>
<Instance Name="B">
... (4 Replies)
Discussion started by: tententen
4 Replies
4. Shell Programming and Scripting
Dear All,
I need help..
I am having a csv file.
Home_TITLE,People_TITLE,Repo_ALIAS
HMN5530,RKY5807,/mine_repo/rike001
HMN5530,SRY6443,/mine_repo/rike001
HMN5530,ARDY001,/mine_repo/rike001
If i have two value in varible RKY5807, HMN5530. how can fetch and store another value... (6 Replies)
Discussion started by: yadavricky
6 Replies
5. UNIX for Dummies Questions & Answers
file input
aaaa,52C
aaaa,50C
bbbb,50C
bbbb,58C
aaaa,52C
bbbb,50C
aaaa,30C
bbbb,58C
cccc,60C
i want to print uniq lines with its max value of column2
expected output
aaaa,52C
bbbb,58C
cccc,60C
tks (4 Replies)
Discussion started by: radius
4 Replies
6. Shell Programming and Scripting
All
I have a requirement to search and pick the data as below. Explained with example.
38999|4812 Highway 52 North|Rockville|55901|0196
67541|2800 Dexter Road|Northville|38999|0196
This is pipe separate data. First column represents dealer id and 4th column represents the zip code where... (4 Replies)
Discussion started by: ak835
4 Replies
7. Shell Programming and Scripting
3679 Jul 21 23:59 belk_rpo_error_**po9324892**_07212014.log
0 Jul 22 23:59 belk_rpo_error_**po9324892**_07222014.log
3679 Jul 23 23:59 belk_rpo_error_**po9324892**_07232014.log
22 Jul 22 06:30 belk_rpo_error_**po9324267**_07012014.log
0 Jul 20 05:50... (5 Replies)
Discussion started by: LoneRanger
5 Replies
8. Shell Programming and Scripting
I am trying to modify and understand an awk written by @Scrutinizer
The below awk will filter a list of 30,000 lines in the tab-delimited file. What I am having trouble with is adding a condition to SVTYPE=CNV
that will only print that line if CI=,0.95: portion in blue in file is <1.9.
The... (2 Replies)
Discussion started by: cmccabe
2 Replies
9. Shell Programming and Scripting
The awk below uses the tab-delimeted fileand reformats each line based on one of three conditions (rules). The 3 rules are for deletion (lines in blue), snv (line in red), and insertion (lines in green). I have included all possible combinations of lines from my actual data, which is very large.... (0 Replies)
Discussion started by: cmccabe
0 Replies
10. UNIX for Beginners Questions & Answers
Hi, I need to print lines which are matching with start pattern "SELECT" and END PATTERN ";" and only select the last "select" statement including the ";" .
I have attached sample input file and the desired input should be as:
INPUT FORMAT:
SELECT
ABCD,
DEFGH,
DFGHJ,
JKLMN,
AXCVB,... (5 Replies)
Discussion started by: nani2019
5 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)