Some netra 240 machines went into ALOM mode, and when I issue the command;
sc> console
it got stuck, does it mean Solaris OS had crashed ? or what can I do to reboot,because reboot is not starting?
And advice ? (3 Replies)
Hi guys,
I have a log that looks like that below. Columns 2 3 4 5 6 7 is the date/time stamp separated by comma.
UUU,02,06,2010,10,00,00,00,0000000000000000,0000000000000000,0000000000001224
UUU,02,06,2010,10,05,00,00,0000000000000000,0000000000000000,0000000000001502... (2 Replies)
Hello,
Merry Christmas to all! I wish you the best for these holidays and the best for the next year 2011.
I'd like your help please, I need to delete all the rows in the third column of my file, but without touching nor changing the first and last value position, this is an example of my... (2 Replies)
hi all,
i have a problem...no dream :-)
i want to scan a file i use the loop famous
while read line
do
do < myfile
but this scan must finish when find the another string .
How can i do it?
best regards for all.
Francesco
Please use descriptive subjects. "script." doesn't tell... (5 Replies)
Hi All,
I have a very huge file (4GB) which has duplicate lines. I want to delete duplicate lines leaving unique lines. Sort, uniq, awk '!x++' are not working as its running out of buffer space.
I dont know if this works : I want to read each line of the File in a For Loop, and want to... (16 Replies)
Hi, i have a question, when I install any software it give error message like as follow :
sudo make
password for csm:
make all-recursive
make: Entering directory `/home/csm/Desktop/miRanda-3.3a'
Making all in man
make: Entering directory `/home/csm/Desktop/miRanda-3.3a/man'
make:... (18 Replies)
Hi,
I have a file as follows.
file1
Hello
Hi
His
Hi
Hi
Hungry
hi
so I want to delete identical lines while leaving one of them undeleted.
So desired output will be
Hello
Hi (2 Replies)
Discussion started by: beginner_99
2 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)