I have a script that needs to run under ID say "xyz". the way I do normally is to "su" to the id, enter the password of "xyz" and run the process. However, is there any way run the process under "xyz" without "su" to the ID. A person with root access would be able to run any process under any ID as... (4 Replies)
Hi all,
I am having a little bit of trouble trying to find something out. I am trying to script a start/stop php file, for some gaming servers i host. The server have 2 lots of processes running on them, and the customers need to be able to start and stop them at their will.
So i know how to... (1 Reply)
Hey guys,
Just wondering is there anyway that I would be able to run a detached process that would continue to run regardless of me being logged into the linux host? (4 Replies)
get email notification from from system when a process from XXXX user takes longer than 15 min run.Let me know the time estimation for the same.
hi ,any one please tell me , how to write a script to get email notification from system when a process from as mentioned above a xxxx user takes... (1 Reply)
Hi I have a perl script where i created 3 nmap scans and the results will output to a text file. But when i run the code the first ip address gets scanned then the others after, but i want to be able to choose which ip address to scan.
Here is my code:
(`nmap -v -r 99.xxx.xxx -p... (0 Replies)
Hi, I was wondering if there was any way in unix to check when a file was last run.
I'm doing a basic menu.
1. Savefile
2. Check when SaveFile was last run.
What can I use here to display when SaveFile was last run?
Coding so far is
if
then
echo Save file was last used:
... (2 Replies)
Hii Friends,
I am using Perl CGI. I am running A SCP Command via Perl CGI in Background. Like
system("scp -r machinename:/PathOfFile/ /Path/WhereToCopyIt/ &)
This Copy Process takes some times lets say 15 min.
Now I want When This copy process gets complete then send me... (5 Replies)
I have process1 running on one machine and generating some log file. Now another process which can be launched on any machine wants to know if process1 is running or not and also in case it is running it wants to stream the logs file generated by process1 on terminal from which process2 is... (2 Replies)
Dear Team,
i need to know in linux if someone run the command in linux server
where i can check on server . i need to know the below points
who (user)
when (date and time)
what (command)
regards,
scriptors (1 Reply)
Hello,
I am running under ubuntu 14.04
Very long time ago, I set a script (ban.sh) to block ip addresses abusing my system which was not active.
I have not touched the server over six months or more.
Today, after restart the system, ban.sh started running all of a sudden and keep submitting... (4 Replies)
Discussion started by: baris35
4 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)
05-23-2007
