Dear friends,
In VI, I have these data shown below:
Line1
Line2
Line3
Line4
How can I JOIN these line to the first line? When I finished I should have:
Line1 Line2 Line3 Line4
is there a text length limit of how long a single line can be in VI?
Thank you much! (10 Replies)
hey guys, how do i replace only a line within a file without messing up the rest of the contents of the file?
see, if possible can you guys give me a straight forward way to do this. i dont want a complex command. what i mean is i know i can accomplish this by using sed, well, i think i can,... (3 Replies)
Can any one give me the idea on replacing multiple blank lines with a single blank line?
Please conside it for a file having more than 100 number of characters.
Regards,
Siba (3 Replies)
It sounds a bit confusing but what I have is a text file like the example below (without the Line1, Line2, Line3 etc. of course) and I want to move every group of characters into a new line after each space.
Example of text file;
line1 .digg-widget-theme2 ul { background: rgb(0, 0, 0) none... (7 Replies)
Dear All,
I want to split single line into two line or three lines wherever “|” separated values comes using
Input line
test,DEMTEMPUT20100404010012,,,,,,,,|0070086|0070087,
output shoule be
test,DEMTEMPUT20100404010012,,,,,,,,0070086,
test,DEMTEMPUT20100404010012,,,,,,,,0070087, (14 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)
HI,
My input file contains the data as like below:
A1234119993
B6271113
Bghjkjk
A1234119992
B6271113hi
Bghjkjkmkl
the output i require is :
A1234119993 B6271113 Bghjkjk
A1234119992 B6271113hi Bghjkjkmkl
Please help me in this.
Thanks (6 Replies)
I have an xml file that is stripped down to output that looks bacically like;
<!-- TABLEA header -->
<tablea>
some fields
</tablea>
<!-- TABLEB header -->
<!-- TABLEC header -->
<tablec>
some fields
</tablec>
I want to remove the header... (3 Replies)
Hi,
I need some iteration to do the following work.
Sample:
ANS|26-Jan-2012|26|MON|12536.1
ANS|26-Jan-2012|26|TUE|2536.1
ANS|26-Jan-2012|26|THUR|789.1
SED|26-Jan-2013|32|MON|258.1
SED|26-Jan-2013|32|TUE|369.1
SED|26-Jan-2013|32|THUR|2145.1
OUTPUT:
... (3 Replies)
Hi
Am confused with the usage of "sed" command
I want to replace a single line with multiple lines of a file..
eg.,
A file has
Hi, How are you?
I need to replace as
Am fine
What are You doing?
I used the script as
string1="Hi, How are you?"
echo "$string1 is the value"... (4 Replies)
Discussion started by: Priya Amaresh
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)