Hi all,
I'm a unix newb andI'm trying to write a script that can copy some text paste it in a certian place and then add a number. It's not really clear but I'll show an example.
what the file looks like right now:
Linux 2.6.24-24-generic (abc) 07/15/09
23:25:01 CPU ... (6 Replies)
Dear All,
I am working with windoes OS but remote a linux machine. I wonder the way to copy an paste some part of a huge file in linux machine.
the contain of file like as follow:
...
dump annealling all custom 10 anneal_*.dat id type x y z q
timestep 0.02
run 200000
Memory... (2 Replies)
Hi All,
I want to edit my gate level netlists by searching for the content between two patterns
eg:
ff1 \test/a0 ( .CLK(\test/ClkInt0_acb_00x1 ),.D(\test/Rakicc ), .QB(\test/X ), .VDD(1'b1), .VSS(1'b0));
ff1 \test/a1 ( .CLK(\test/medis0_acb_00x1 ),.D(\test/hedwc ), .QB(\test/X ),... (6 Replies)
Hi Guys,
I have the following problem. I have original file (org.txt) that looks like this
module v_1(.....)
//arbitrary number of text lines
endmodule
module v_2(....)
//arbitrary number of text lines
endmodule
module v_3(...)
//arbitrary number of text lines
endmodule
module... (6 Replies)
Please help me. This is simple, but urgent problem for me. :(
I have a two files
file1
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6
.....
file2
11 12 13 14 15
11 12 13 14 15
11 12 13 14 15
.....
1) I hope to make a new file, file 3, that consists of 2nd... (2 Replies)
Hello
I want to read from a file which contains email addresses.
The file format is like this.
from@mail.com
to1@mail.com
to2@mail.com
cc@mail.com
bcc@mail.com
I'll have to read from such file and assign the email addresses to respective variables.
frommail =... (11 Replies)
Hi
I need some lines of text from input file using keywords.
Inputfile
IP IS 10.238.52.65
pun-ras-bng-mhs-01#context bsnl.in
Card Status : 1:0, 2:1, 3:1, 4:1, 5:0, 6:0, 7:0,
8:0, 9:1, 10:0, 11:0, 12:0, 13:0, 14:1,
Max Circuits: 1: 0, 2: 32768, ... (5 Replies)
I have a really big XML file. I need copy the value of one tag inside another one tag. I try to publish one example.
<channel update="i" site="merge-xmltv" site_id="" xmltv_id="Rai 1">Rai 1</channel>
<channel update="i" site="merge-xmltv" site_id="" xmltv_id="Rai 1 +2HD">Rai 1... (6 Replies)
Hi I have a text file with lines beginning with 71303, 71403, 71602,
I need to copy the 10 digit text at position 30 on lines beginning with 71303 (5500011446) to position 99 on every line beginning with 71602 (see example below),
There may be many 71303 lines but I need the text copying to... (2 Replies)
Discussion started by: firefox2k2
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)