I have a .procmailrc file that includes a file named .rc.phplist. Within .rc.phplist is the following set of recipes:
:0
* $RECIP ?? ^^phplist@$DOMAIN
{
# Has this message already been sent? If so, delete it.
:0h
* ^X-Mailing-List:
/dev/null
:0cw
phplist/queue/.
:0... (18 Replies)
Hi ,
I have one question, suppose i am a normal user and when i use 'w' command , it shows who is logged on and what they are doing .
Now i want to stop others users to know what i am doing accept the root ?
can i do this ?
thanks (5 Replies)
Hi Everybody
I am totally new to Linux.
We are using Suse Linux version 9.
Currently we have 4 to 5 shell scripts which needs to be executed manually by the users.I want these scripts to be run automatically when system starts...something like system startup service.
When system is... (1 Reply)
Hi all,
I got a script that runs automatically using the cron file.
The script starts running at midnight and suppose to delete image files from folders and sub-folders. The script ends when he finishes deleting or after 5 hours. My problem is that the script doesn't stop running even after 5... (3 Replies)
Hi guys if for every command you issued successfully where to be logged from a script and them sent an email to the admistrator how could i stop that so that i wouldnt have to delete admin mail all the time. I would only want to produce output if there was an error. (5 Replies)
completion-ignore-case option doesn't work in my version:
/home/user $ echo $BASH_VERSION
3.2.48(1)-release
/home/user $ ls -l *
-rw-r--r-- 1 user user 0 2009-10-18 00:09 somefile
-rw-r--r-- 1 user user 0 2009-10-18 00:09 Somefile
/home/user $ set completion-ignore-case on
But when I... (2 Replies)
Hello, I need to write a program which sets server's ip address, router, network mask. Program also should set if it is an internal or external ip. Maybe someone can help me ? Any information from u is very useful :b:
I stopped at .. :(
#!/bin/sh
A=`hostname -i`
echo "server ip address is $A"... (4 Replies)
Hi All,
I tried executing set of queries from shell script but not able to capture the input query in the log file. The code looks something similar to below
sqlplus user/pwd@dbname << EOF > output.log
$(<inputfile.txt)
EOF
The above code is capturing the output of queries into... (9 Replies)
Hi,
I am looking for a shell script which serves the below purpose.
Please find below the algorithm for the same and any help on this would be highly appreciated.
1)set of strings need to be replaced among set of files(directory may contain different types of files)
2)It should search for... (10 Replies)
Discussion started by: Amulya
10 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)