Hi,
Im trying to write something that will report if a filesytem is over 80% but the problem is the output reports on a dir that is a 9%.
any ideas?
this is what I have
*************************************************
if
then
param=90
else
param=$1
fi
df -kl | grep... (1 Reply)
I am using ftp on Solaris to transfer files to Windows 2000 that have leading blanks in the name (ex. " 12345A4444.BIN"). When they get to Windows the leading blanks are stripped off. Has anyone encountered this and is there a fix? If I use Hummingbird it is ok but that is not an option for... (6 Replies)
I have a file with a list of filenames. I want to work loopwise through the file and operate on each of the listed files. Normally I'd do something like:
for file in `cat $mydir/file-list`
do
echo $file >> $mydir/my.log
cp $mydir/$file $newdir
done
the problem is that my... (1 Reply)
hello i'm trying to figure out how to number a blank line. For instance this :
sed '/./=' file | sed '/./N; s/\n/ /'
gives me
1 aaaa
2 bbbbbb
4 cccccc
5 ffkkkfff
6 ffsdfdfs
I would like something like this:
1 aaaaa
2
3 bbbbbb
4
5 cccccc
And so... (6 Replies)
I'm relatively new to Pro*C programming. In the following example:
char name; EXEC SQL SELECT 'John Doe' INTO :name FROM DUAL;
"John Doe" is in positions 0-7, blanks in 8-19, and a null in 20. I would really prefer the null to be in position 8 and I don't care what's after that. I wrote a... (1 Reply)
Hi ,
i need to write a simple to script in KSh to move some files ,
but these files have spaces in there name, resulting in error in transfering
eg i have following files
30222_Deal Ticket_20071227203.csv
30222_Deal Ticket_20071227204.csv
30222_Deal Ticket_20071227205.csv
and i want to... (7 Replies)
Does anyone know of a way with C Shell that will work on both Linux and Sun to clear all leading and trailing blanks from a previously specified string? I am using the following code to replace blanks with underscores:
set Company = `echo $Company | sed 's/ /_/g
but I don't want any... (1 Reply)
I have pipe separated file with lots of blank spaces.
After using sed -e 's/ *| */|/g' this command ,its giving me output as
TT0000013101640|
HCAMBLAMCNB010|Jul 3 2012 11:14AM|
HARYANA|
Bangali Mohalla |
TCL-UBR|9368040005|9355264655|9218509220|NULL
... (5 Replies)
I have just installed AIX 7.1 on a new system, and find that it displays the same annoying behaviour the you find in Linux:
In an xterm, when you quit vim or less, the file listed in the terminal window is blanked out and replaced with whatever was there before.
In vim there is a couple of... (12 Replies)
Discussion started by: jandersen
12 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)