Hi all,
When in 'less' or '-' or whatever your alias is, if you search for a string, you get all of it's occurences highlighted. Is there any option I can set in VI, .exrc or whtever, to have the same behaviour in VI?
thanks (2 Replies)
I am trying to do some thing like this ..
In a file , if pattern found insert new pattern at the begining of the line containing the pattern.
example:
in a file I have this.
gtrow0unit1/gctunit_crrownorth_stage5_outnet_feedthru_pin
if i find feedthru_pin want to insert !! at the... (7 Replies)
Hi all,
I need to mark a file with it's current location in the file system before being moved.
This will enable the file to be restored back to it's original location.
Can anyone provide any ideas about the best way to do this, at present i'm trying to use readlink -m to strip off the... (1 Reply)
Im trying to parse ifconfig with awk and setup a bunch of variables in one shot. But Im having trouble figuring out how to work with data in previous lines.
ifconfig output:
eth0 Link encap:Ethernet HWaddr 00:50:DA:10:7F:1B
inet addr:10.10.10.10 Bcast:10.10.10.127 ... (0 Replies)
Hi
I have a file whose sample contents are shown here,
1.2.3.4->2.4.2.4 a(10) b(20) c(30)
1.2.3.4->2.9.2.4 a(10) c(20)
2.3.4.3->3.6.3.2 b(40) d(50) c(20)
2.3.4.3->3.9.0.2 a(40) e(50) c(20)
1.2.3.4->3.4.2.4 a(10) c(30)
6.2.3.4->2.4.2.5 c(10)
.
.
.
.
Here I need to search... (5 Replies)
Hello all,
searching on a text file (log file) is quite simple:
grep -i texttosearch filename | grep somethingWhat I'm trying to do is filter the result by TAG and remove the double entries.
Like if the log file contains the following text (fields are separated by commas):
... (18 Replies)
I want to print from <fruits> to </fruits> tag which have <fruit> as mango. Also i want both <fruits> and </fruits> in output. Please help
eg.
<fruits>
<fruit id="111">mango<fruit>
.
another 20 lines
.
</fruits> (3 Replies)
I want to basically do the below thing. Suppose there is a tag called object1. I want to display an output for all similar tag values under heading of Object 1 and the count of the xmls. Please help
File:
<xml><object1>house</object1><object2>child</object2>... (9 Replies)
I have this fileA
TEST FILE ABC
this file contains ABC;
TEST FILE DGHT this file contains DGHT;
TEST FILE 123
this file contains ABC,
this file contains DEF,
this file contains XYZ,
this file contains KLM
;
I want to have a fileZ that has only (begin search pattern for will be... (2 Replies)
Discussion started by: vbabz
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)