If you store the following values in variable, e.g boldon and boldoff you can do it:-
I might have the wrong bit, this might put on underline or reverse perhaps. I don't have a server to hand to try this on I'm afraid. Can someone correct me if I'm wrong please?
Hi,
When I am running below mentioned script then the characters become bold but after opening the same file in Windows, Instead of getting bold characters i am getting some garbage value for \033Kunal Dixit
Output in Windows (after ftp the file):
but in windows , i am getting
My name is... (0 Replies)
Hi
How to call a shell scripting through a Perl scripting? Actually I need some value from Shell scripting and passes in the Perl scripting. So how can i do this? (2 Replies)
I want to bold one word in shell script. I want the value for num bold when it is inputted. My code does not bold the value. It's like its not even there.
echo -n "Please read a number"
read num ; echo "${bold} $num ${offbold}"
Thank you,
Ccccc (6 Replies)
Hi all,
I would like to start developping some good scripting skills. Do you think it would be best to start with shell scripting or Perl? I already got a fundation, really basics, in perl. but I am wondering what would be best to be good at first.
Can you please help me determine which one to... (14 Replies)
Gents,
I have been working in a Solaris/Unix environment for about 9 months. I took some linux classses online before getting the job. But, I am not very good at scripting. I want to learn how to script. Do you think that I should start with Shell scripting or Perl? I wanted to continue with... (2 Replies)
Hi All,
This is my first port.....
I am using AIX 5L, installed 10g database.
On daily basis we takes rman backup.
This backup status info strored in a log file.
I write a script to know the status of back means I will fire this script and this script will send a mail to me.
#!/bin/bash... (16 Replies)
Take example of below file.
abc.txt
nas1:/abc/test/test1 /test
nas1:/abc/test/test1/test2 /test/abc
nas1:/abc/test/
Now i have a variable that contains "nas1:/abc/test/test1" value , so i need to search the above file for this variable and print only this line.
... (14 Replies)
Discussion started by: mohit_vardhani
14 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)