I'm sure this will be an easy question for you experts out there, but I have been searching the forum and working on this for a couple hours now and can't get it right.
I have a very messy data file that I am trying to tidy up - one of the issues is some records are split into multiple lines: ... (4 Replies)
Hi,
Can anyone help me for merge the following multi-line log which beginning with a number and time: into one line. For each line need to delete the return and add a space. Please see the red color line.
*****Original Log*****... (4 Replies)
Hello,
Can anyone let me know how to use Perl script to Merge following multi-lines into one single line...
***** Multi-line*****
FILE_Write root OK Tue Jul 01 00:00:00 2008 cl_get_path
file descriptor = 1
FILE_Write root OK ... (5 Replies)
The symbols are \t and \t\t (note: not tab)
If the line starts with \t merge them into a single line upto symbol \t\t
\t\t to end and start new line
I able to join in a single line but not ending at \t\t and I completely confused
help would be appreciated:b::D
Input
\ta tab XXXXXXXXXX
\te... (5 Replies)
Hi,
I have a requirement with,
No~Dt~Notes
1~2011/08/1~"aaa
bbb
ccc
ddd
eee
fff
ggg
hhh"
Single column alone got splitted into multiple lines.
I require the output as
No~Dt~Notes
1~2011/08/1~"aaa<>bbb<>ccc<>ddd<>eee<>fff<>ggg<>hhh"
mean to say those new lines to be... (1 Reply)
example:
comment Now_TB.table column errac is for error messages
1 - first
2 - second
3 -third ;
in this example I need to be able to grab the comment as first word and ; as the last word and it might span a few lines. I need it to be put all in one line without line breaks so I can... (4 Replies)
Hi guys,
So i have a input file with several sequences aligned (fasta)
>NC_005930 241 bp
MNMINIFIINNIFDQFIPVKLSIFSLTSVGSIIA
LSWVWINTKTHWAISRSNTP-SLLLNSL
WTLLITNL-NEKTNPWAPWLFSLFLLCFSFNIMSLI-PYTF-SQ
TSHLSFTFGLSLPIWIMVNIAGFKNNWKKKISHLLPQGTPIYLVPVMII
IETISLFIQPLTLGFRLGANLLAGHLLIFLCSCTIWE... (6 Replies)
:confused:Hello -- i just joined the forums. I am a complete noob -- only about 1 week into learning how to program anything... and starting with linux.
I am working in Linux terminal.
I have a folder with a bunch of txt files. Each file has several lines of html code. I want to combine... (2 Replies)
Hi,
Can anyone help me for merge the following multi-line log which beginning with a " and line ending with ": into one line.
*****Original Log*****
087;2008-12-06;084403;"mc;;SYHLR6AP1D\LNZW;AD-703;1;12475;SYHLR6AP1B;1.1.1.1;0000000062;HGPDI:MSISDN=12345678,APNID=1,EQOSID=365;... (3 Replies)
Discussion started by: rajeshlinux2010
3 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)