Shell :copying the content from one file to another
I have a log containing the below lines.
file1.log
-----------
file2.log
Now file2 has to be generated from file1 by eliminating all module: and moduleRT etc. Only module that are postfixed with number has to be copied to file2.log
Hi,
I have a file in my unix system let's call it FileName.
First I want to copy its content into a another file, but outside of the unix, meaning I could open it at home. (text file would be perfect)
Second (if it's possible) I need to take the first word of each line in the file (you know... (2 Replies)
I want to capture contents of a file between 2 strings into another file
for eg all lines in between the keywords "start log" and "end log" should be copied into another file (1 Reply)
my server runs solaris 10 , one of the partition in my primary harddrive is 99% full , i want to move the contents of it to the second harddrive . what is the best way to move the contents to 2nd drive ? which command should i use cpio/dd/tar/ufsdump .... please guide me with the command and the... (0 Replies)
my server runs solaris 10 , one of the partition in my primary harddrive is 99% full , i want to move the contents of it to the second harddrive which has higher capacity. what is the best way to move the contents to 2nd drive ? which command should i use cpio/dd/tar/ufsdump .... please guide me... (1 Reply)
Hello, I'm new to scripting and I need help moving text from one file to another file. Here are examples what the files look like.
File 1:
Ac-223 2.10m A 1 0 0 0 Fr-219 358 9.9000E-01 0 0.0 0 0.0 0 0.0... (1 Reply)
Hello everyone
I am completely new to shell scripting in linux. I wan to write a script to search for a certain string from a .txt file and copy the string which apears just after tat searched string.
Eg: in a file- try.txt , we have a line saying: "roses are red, so what do i do"
I... (4 Replies)
Hi,
I want to write a program to copy a log file to Excel sheet. Excel sheet has four columns MethodName , Code , Description, Details and Time.
I want to pick these info from text file and put it in excel sheet.
here is how the text file looks -
04.17.2014 08:06:12,697... (1 Reply)
Discussion started by: hershey
1 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)