I am unsure about how to proceed. I want to reshuffle a deck but without the cards in $PH, $CH, and $AC. Could it be done using sed? Any help would be greatly appreciated.
Thank you in advance.
Cogiz
Hi,
I would like to get some specific fields from one long line.
My line looks like
CcnCDRFile0-8535123473201007170536_2010-07-20_17:06:02:,,9963387265,,,,,00720141432,,+0.310,+79.255,+78.945,,,,1492,,,,0,... (1 Reply)
Hello to everybody i have problem the picking process falls and falls.
I dont now what the picking process do i believe that is a print server on a data base i dont know where to look.
Is a solaris 10 with korn sheell the process show this
ps -ef | grep picking
batch 18466 1 0... (5 Replies)
hi,
I'm searching for a perfect book to learn awk programming, i started with sed&awk book, but i think this book might be outdated as it is written way back in 97 and also it doesn't have many examples. So, I thought of getting some advice from the experts here. Pls suggest me some books.
... (1 Reply)
I have a list of file names. However in some instances I might have a "-" at the beginning of the filename or an "=".
For example I might have something like this
set Lst = "file1 file2 file3 -file4 file5="
I want to pick up the ones having "-" at the beginning or "=" and store them in... (22 Replies)
Hello Friends
I want to use sed command to pick a part of line. FOr example I only need the
/home_put1/bidds/myfo
part of following line
fish://ulavet@rits1.ula.com.tr/home_put1/bidds/myfo
How can I do this bu using sed command ? (2 Replies)
Hi,
I have a file which contains values in this format.
abc
cde
fgh
ijk
lmn
opq
rst
uvw
The user will pass the required parameter from the command line.
My requirement is that script should pick the values passed by the user and the next value in the next line.
Like if the user... (10 Replies)
Hi
I have a scenario:
I have a directory say DIR1 (no sub directories) and have few files in that directory as given below:
app-cnd-imp-20150820.txt
app-cxyzm-imp-20150820.txt
app-petco-imp-20150820.txt
app-mobility-imp-20150820.txt
app-mobility-imp-20150821.txt... (7 Replies)
Discussion started by: Saanvi1
7 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)