04-10-2016
There's too many ' in the sed command, and jim mcnamara posted the dot correctly escaped.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi All,
below is my data file
file.txt
$$0 ServerA LAN1 AAA IT01 04/30/2008 09:16:26
$$0 ServerB LAN1 AAA IT02 04/30/2008 09:16:26
here $ is a blank space
how to delete first 2 blank spaces in a file. (4 Replies)
Discussion started by: karthikn7974
4 Replies
2. Shell Programming and Scripting
hai
i am very new to unix.
i am having two files like this.
first.properties
cache.ZA.TL_CCY=SELECT trim(CCY_CODE)||trim(COUNTRY_CODE)||trim(CITY_CODE) AS... (4 Replies)
Discussion started by: kkraja
4 Replies
3. Red Hat
I have a file with has the following data
abaddda;;;;;;;;asdfd;;;d;dadfewdff;f;v;v;v;;v;v;v;v;v;v;v;w;;
;frf;r;v;afd;f;ad;f;d;;va;;g;g;sd;a;dg;ag;ads;ga;dga;d;dsa;;;;
;;sd;df;asd;f;df;adf;adf;;df;df;;d;f;f;sf;df;f;df;;fd;f;f;sdfd;;;;
I want to replace every 13 th semicolon ; in... (1 Reply)
Discussion started by: Raju Datla
1 Replies
4. UNIX Desktop Questions & Answers
I have a file with hundreds of records and I need to find those records that have three digits at the beginning and the same three digits at the end.
$GREP '\(\)\(\)\(\)\3\2\1'I
believe this is part of the script but I am not sure how to compare these 3 digits with the 3 digits at the end of... (2 Replies)
Discussion started by: bartsimpsong
2 Replies
5. UNIX for Advanced & Expert Users
Hi Experts,
here is a background to my problem :
I am exporting data from teradata using fastexport utility, as varchar data.
This pads additional two bytes (2 places as seen in notepad) in the resultset.
I have found out other means of avoiding it but can't use varchar option in that... (5 Replies)
Discussion started by: sumoka
5 Replies
6. Solaris
I get a file which has all its content in a single row.
The file contains xml data containing 3000 records, but all in a single row, making it difficult for Unix to Process the file.
I decided to insert a new line character at all occurrences of a particular string in this file (say replacing... (4 Replies)
Discussion started by: ducati
4 Replies
7. Shell Programming and Scripting
Hello,
I have a 100 line code. I have given a sample of it below:
ABC*654654*1*54.54*21.2*87*1*654654654654
CCC*FS*FS*SFD*DSF
GGG*FGH*CGB*FBDFG*FGDG
ABC*654654*1*57.84*45.4*88*2*6546546545
CCC*WSF*SG*FGH*GHJ
ADA*AF*SFG*DFGH*FGH*FGTH
I need to select the line starting with "ABC" its... (6 Replies)
Discussion started by: nithins007
6 Replies
8. Emergency UNIX and Linux Support
Hello,
I have a 100 line code. I have given a sample of it below:
ABC*654654*1*54.54*21.2*87*1*654654654654
CCC*FS*FS*SFD*DSF
GGG*FGH*CGB*FBDFG*FGDG
ABC*654654*1*57.84*45.4*88*2*6546546545
CCC*WSF*SG*FGH*GHJ
ADA*AF*SFG*DFGH*FGH*FGTH
I need to select the line starting with "ABC" its... (3 Replies)
Discussion started by: nithins007
3 Replies
9. Shell Programming and Scripting
Hi,
I currently have a problem that I need to read a file line by line.
After I read it line by line there are some commands in which I have to change a specific string.(In my case, I have to make a script that changes all the passwords into hash value)
Here is a sample input... (3 Replies)
Discussion started by: thebennnn
3 Replies
10. UNIX for Dummies Questions & Answers
Hi Everyone,
I have a requirement in ksh where i have a set of files in a directory. I need to search each and every file if a particular string is present in the file, delete that line and replace that line with another string expression in the same file.
I am very new to unix. Kindly help... (10 Replies)
Discussion started by: Pradhikshan
10 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)