Hi,
I am tryin to install custom software during the linux reboot.
So,I have changed rc.local file, but unfortunately I have added a code that
is going on a infinite loop. And now I am in a pick.
Is there anyway that I can avoid rc.local file while reboot.
Can anyone help me... (2 Replies)
Hi,
I am tryin to install custom software during the linux reboot.
So,I have changed rc.local file, but unfortunately I have added a code that
is going on a infinite loop. And now I am in a pick.
Is there anyway that I can avoid rc.local file while reboot.
Can anyone help me... (1 Reply)
I m stuck with a issue.
I need to calculate the time difference between two files.. one on the local machine and one on the remote machine using a script.
Can any one suggest the way this can be achevied
Thanks,
manohar (1 Reply)
Hi,
I have written a script which would FTP a dump file to the FTP server and log the whole activity into a file. to confirm the success of the file copy i grep for "226 file receive OK" and then send out an email saying success. Now i want to make sure the bytes of the local file and... (4 Replies)
I have a data file of two columns (corresponding to the x and y axes of a graph) separated by a comma. I want to find the local maximum values and print them to a file. It has been a while since I've done any scripting and I've forgotten everything. I have a few basic questions.
1.) How do... (1 Reply)
Hi,
I putted the following code in my rc.local file:
logf=/tmp/rc.local.log
if
then
echo Start >> $logf
/usr/sbin/pppd nodetach debug call internet >> $logf
echo Stop >> $logf
ping -c 1 google.com >> $logf
fi
But after login rhere was no rc.local.log file in my temp folder:
... (1 Reply)
Hi,
I am a newbie to AIX, so please bear with me. I have mounted a dvd drive on AIX. I am trying to copy the file that is on the dvd drive on to the local machine. However, I get an error:
cp: c1m_0001.gz: A system call received a parameter that is not valid.
Can some one point me to the... (1 Reply)
Hi Friends,
I have this script for ftping files from AIX server to local windows xp.
#!/bin/sh
HOST='localsystem.net'
USER='myid_onlocal'
PASSWD='mypwd_onlocal'
FILE='file.txt' ##This is a file on server(AIX)
ftp -n $HOST <<END_SCRIPT
quote USER $USER
quote PASS $PASSWD
put $FILE... (1 Reply)
Hello,
I'm on a remote computer by SSH. How can I get the output of "cat file" into a file on the local computer?
I cannot use scp, because it's blocked.
something like:
ssh root@remote_maschine "cat /file" > /locale_machine/file
:rolleyes: (2 Replies)
Discussion started by: borsti007
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)