I need help with a problem that I have not been able to figure out.
I have a file that is about 650K lines. Records are seperated by
blank lines, fields seperated by new lines. I was trying to make
a report that would add up 2 fields and associate them with a CP.
example output would be... (11 Replies)
hi , i would like to parse some file with the fallowing data :
data data data "unwanted data" data data "unwanted data"
data data data data #unwanted data.
what i want it to have any coments between "" and after # to be erased using awk or/and sed.
has anyone an idea?
thanks. (3 Replies)
Hi there
Not to good in awk . So bear with me I would need a one liner
to take a file with this in it
name: joe smoe;
group: group1;
name: linda smith;
... (2 Replies)
Hi, I have a input file like this
TH2TH2867Y NOW33332106Yo You Baby
TH2TH3867Y NOW33332106No Way Out
TH2TH9867Y NOW33332106Can't find it
TJ2TJ2872N WOW33332017sure thing alas
TJ2TJ3872N WOW33332017the sky rocks
TJ2TJ4872N WOW33332017nothing else matters ... (4 Replies)
I have a file that reads like this:
name:john
name:bill
name:james
phone:123
phone:456
phone:789
i would like change the file so it appears like this:
name:john
phone:123
name:bill
phone:456
name:james
phone:789
any help is greatly appreciated! (1 Reply)
hello ,
i am trying to parse xml using awk however its a little bit tricky as i want
<databases>
<source>
<host>prod</host>
<port>1522</port>
<tns>GP1</tns>
<user>P11</user>... (6 Replies)
Hi All,
I have a problem to resolve. For following XML file, I need to parse the values based on Tag Name. I would prefer to use this by awk. I have used sed command to replace the tags (s/<SeqNo>//).
In this case there can be new tags introduced. So need to parse it based on Tag Name. Any... (9 Replies)
Input File ( this is a sample record )
Storage Group Name: DRT_ny-iadsql1-c_ny-iadsql2-c
Storage Group UID: 00:21:E9:C7:2D:E0:E1:11:82:CC:00:60:16:10:04:0A
HBA/SP Pairs:
HBA UID SP Name SPPort
------- ... (2 Replies)
Input File
Name of the session: filesrv_quo
snap Logical Units UID: 60:06:01:60:01:7B:25:00:C8:86:B0:CA:5B:A2:E0:11
Name of the session: verspn2_at_176_0218
snap Logical Units UID:
Name of the session: DRT-ny-iadsql1-c_ny-iadsql2-c
snap Logical Units UID: ... (4 Replies)
Hello
I am trying to find how to do the following with awk and other tools.
Find a line in the file where the element 1 is equal to 12345, from the first occurrence, in that line find the element 11 what is equal to and print all lines in file where their element 11 is equal to the value of... (2 Replies)
Discussion started by: koutroul
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)