01-29-2009
Hi, thanks!
Is there a version withour nawk?
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1. Homework & Coursework Questions
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Give 'awk' script which printss last field of every line..everyline may have different number of fields.
2.... (1 Reply)
Discussion started by: aadi_uni
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2. Shell Programming and Scripting
Hi,
I have a file that has data in it that says
00:01:48.233 1212
00:01:56.233 345
00:09:01.221 5678
00:12:23.321 93444
The file has more line than this but i just wanted to put in a snippet to ask how I would get the highest number with time stamp into another file. So from the above... (2 Replies)
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3. Shell Programming and Scripting
Hello,
I have a text file with n lines in the following format (9 column fields):
Example:
contig00012 149606 G C 49 68 60 18 c$cccccacccccccccc^c
I need to count the number of lower-case and upper-case occurences in column 9, respectively, of the... (3 Replies)
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4. Shell Programming and Scripting
######################## SOLVED ##################
Hi
I have a header file like the following and the field "IDENTIFIER" can be at any possition on this line,
The line can containt a variable number of field, not alway the same depending of the header file i use
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5. Shell Programming and Scripting
Dears,
I need a script or command which can find the unique number from the second filed and against that number it adds the total of first field .
17215630 , 0
907043 ,1
201050 ,10
394149 ,4
1964 ,9
17215630, 0
907043 ,1
201050, 10
394149 ,4
1964 ,9
1234234, 55
23 ,100
33 ,67
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6. Shell Programming and Scripting
Hello, I am using awk to match text in a tab separated field and am able to do so when matching the exact word. My problem is that I would like to match any sequence of text in the tab-separated field without having to match it all. Any help will be appreciated. Please see the code below.
awk... (3 Replies)
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7. Shell Programming and Scripting
Hi ,
I have been trying to write a perl script to do this job. But i am not able to achieve the desired result. Below is my code.
my $current_value=12345;
my @users=("bob","ben","tom","harry");
open DBLIST,"<","/var/tmp/DBinfo";
my @input = <DBLIST>;
foreach (@users)
{
my... (11 Replies)
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8. Shell Programming and Scripting
HI,
I have two files and contains many Fields or columns with | (pipe) delimitor, wanted to compare both the files and get only unmatched perticular fields number.
ex:
first.txt
111 |abc| 230| hbc | bb2 | cs
second.txt
111 |abc |230 |abn | bb2 | fp
Here the different data in two... (2 Replies)
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9. Shell Programming and Scripting
HI,
I have two files and contains many Fields or columns with | (pipe) delimitor, wanted to compare both the files and get only unmatched perticular fields number.
ex:
first.txt
1 | 2 | 3
111 |abc| 230
hbc | bb2 | cs
second.txt
1 | 2 | 3
111 |abc |230
abn | bb2 | fp
Here the... (7 Replies)
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10. Shell Programming and Scripting
Hi
I want to use awk to match where field 3 contains a number within string - then print the line and just the number as a new field.
The source file is pipe delimited and looks something like
1|net|ABC Letr1|1530|||
1|net|EXP_1040 ABC|1121|||
1|net|EXP_TG1224|1122|||
1|net|R_North|1123|||... (5 Replies)
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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)