Hi,
I am beginner in shell programming.In a shell script i found a call to a script
'runrep25m',which i think is to generate oracle reports?Could anyone help me by providing some details about its usage
With Thanks & Regards
Dileep (7 Replies)
I have input file with below content:
Person:
Name: Firstname1 lastname1
Address: 111, Straat
City : Hilversum
Person:
Name : Fistname2 lastname2
Address: 222, street
Cit: Bussum
Person:
Name : Firstname2 lastname3
Address: 333, station straat
City: Amsterdam
I need... (6 Replies)
Hello,
I got a requirement in writing a sheel script in unix, please help me out
the requirement is there are two folders Folder1 and Folder2 and there are same files in the different folders. like file1,file2 in folder1 and file1 and file2 in folder2.
I would like to compare all the... (2 Replies)
Hello,
I got a requirement in writing a KSH script in unix, please help me out
the requirement is there are two folders Folder1 and Folder2 and there are same files in the different folders. like file1,file2 in folder1 and file1 and file2 in folder2.
I would like to compare all the similar... (3 Replies)
Hello everyone,
I have a list of inputs as below. My logic is to get the particular powerdisk which matches for ASM disk which means take the major & minor number of each asm disk and matches with powerdisk info then get the particular powerdisk
$ ls -l /dev/asm_* ---> ASM disk info... (11 Replies)
hi all
i need to generate a report file that contains the following details of files present in a directory.
1. File name
2.Complete path for each files and directory
3.File size
4.Days older
example i have a directory testing that contains sub-directories and some files.
i need to make a... (5 Replies)
Hi I recently joined a project where I have been asked to generate a report using shell script accessing UNIX box.
I have no idea on how to do it as I am a beginner and learning shell scripts.
Suppose I have a XML:
Code:
... (3 Replies)
Hi,
I have a perl script to read the log file and create a report from it. I have the script file and log file in a different directories. Now i have pipe the log file data to the perl script to create the report (HMTL file). I am using the below command this isn't working
tail -f... (4 Replies)
Hi,
I have a file pk.txt which has table related data in following format
TableName | PK
Employee | id
Contact|name,phone,country
I have another file desc.txt which lists datatype of each field like this:
Table|Field|Type
Employee|id|int
Contact|name|string
Contact|country|string... (7 Replies)
Hi all
I have a unix script that generates a report with the following information:
uptime, mounted file systems, disk usage (> 90% --> critical, <75%-90%> --> warning, < 75% healthy), Mem usage, CPU usage and load average.
But I would like to create one single report containing all this... (5 Replies)
Discussion started by: fretagi
5 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)