hi everyone. i have a problem on installing binary file in my cygwin. could anyone help me wat command should i use to install it ?
thanks a lot (4 Replies)
I have managed a successful install of Cygwin (after a few tries), and like any sensible person am ignoring the console in favour of the xconsole. I have this set up how I want - tcsh, all hot-keys (including ^z for suspend) and et cetera, but find it awfully slow. Are there any good... (7 Replies)
I'm trying to run the make command in cygwin.
The directory is d:\resiprocate-1.2.3\resip\dum\test.
But the command outputs:
cant open perl script "c:\Program": No such file or directory
why??...check the attached JPEG file....plz help (10 Replies)
i am completely new to unix and am trying to learn with cygwin.
my problem is simple....
when i use the 'man' command, eg 'man cat'
id do not know how to get out of the manual!!!?
if i type '!' and Return,
rather than having just the $ prompt, it has 'sh-3.2$' as a command prompt.... (1 Reply)
hello ... i am new with cygwin ... and i want you to help me. ...
First of all, i want to determine the steady state stream function in a 2-D duct using a square mesh by using the finite-difference methodology and i want to simulate it....and i read a lot of information at... (1 Reply)
hi....
i want to set an alias to "ls -lart" permanently. i am using cygwin and in that .bashrc and .bash_profile files are readonly.
so please tell me how i can do that?
thanks (1 Reply)
I started to gather some stats from our windows servers through the use of cygwin and sshd :)
is anyone else doing this sort of thing?
interested in some other indicators I should be checking for...
thanks,
manny
the following is only an example of the type of data I am able to... (4 Replies)
Do clear command do not work in cygwin.. (4 Replies)
Discussion started by: parthmittal2007
4 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)