Hi one and all,
I'm working on a Bash script that is designed to calculate how much IP traffic has passed through a port to determine traffic volume over a given amount of time.
I've currently been able to use the netstat -s command coupled with grep to write to a file the total packets... (13 Replies)
I have an input file like
RMS_RPT_PERIOD_DIM,Table,NYTD_SLS_DM,GPS_SLS_DM1,NYTD_SLS_GPS_INT,RMS_DM,byreddys,7/31/2009,byreddys,7/31/2009,Y,//depot/eqr/salesgps/trunk/src/db/table,TBL_GPS_CONTACT_DETAILS.sql,1.1,,lakshmi,sql,y... (2 Replies)
Hi
I am trying to retrieve values from a tab-delimited file.I am using
while read record
value=`echo $record | cut -f12`
done
Where 12 is the column no i want retieve and record is one line of the file.
But it is returning the full record.
Plz help (4 Replies)
Hi,
How to retrieve two different date values(min & max) from the oracle table and assign to two different variables in the shell script to process further.
With Regards (8 Replies)
Hi, I need help to convert the filenames of my 9-year daily files (1999-2007) from a julian day to yyyy-mm-dd format. my original files are patterned likes the ones below.
1999001.txt
1999002.txt
1999003.txt
1999004.txt ...
1999365.txt
desired output:
19990101.txt
19990102.txt... (3 Replies)
Hi,
I am trying to extract lines from a text file given a text file containing line numbers to be extracted from the first file. How do I go about doing this? Thanks! (1 Reply)
Hi. im trying to retrieve the line number from grep. i have 1 part of my code here.
grep -n $tgt file.txt | cut -f 1 -d ":"
when i do not cut the value i have is 12:aaa:abc:aaa:aaa:aaa
how can i store the value of 12 or my whole line of string into a variable with grep? (6 Replies)
I have a file containing multiple values, some of them are pipe separated which are to be read as separate values and some of them are single value all are these need to store in variables.
I need to read this file which is an input to my script
Config.txt
file name, first path, second... (7 Replies)
Dear All,
I have to solve the following problems with multiple tab-separated text file but I don't know how. Any help would be greatly appreciated. I have access to Linux mint (but not as a professional).
I have multiple tab-delimited files with the following structure:
file1:
1 44
2 ... (5 Replies)
datafile:
2017-03-24 10:26:22.098566|5|'No Route for Sndr:RETEK RMS 00040 /ZZ Appl:PF Func:PD Txn:832 Group Cntr:None ISA CntlNr:None Ver:003050 '|'2'|'PFI'|'-'|'EAI_ED_DeleteAll'|'EAI_ED'|NULL|NULL|NULL|139050594|ActivityLog|
2017-03-27 02:50:02.028706|5|'No Route for... (7 Replies)
Discussion started by: SkySmart
7 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)