Hi
Thanks for the quick reply. It works but with a hiccup.
The Files are not exactly
They are more like
The script you truncates the name at the first underscore "_"
I would like to keep the name till the date
Thanks
Last edited by radoulov; 01-25-2011 at 05:41 PM..
Reason: Code tags!
I have a script(ex.sh) with one line in it, running in bash shell.
ls -l > /usr/ngasi/contexts/tdevoe/private/ex.txt
when I run it , it creates the file with a trailing question mark
-rwx------ 1 tdevoe webapp 59 Jun 7 06:42 ex.sh
-rw------- 1 tdevoe webapp 3761 Jun ... (3 Replies)
We have a large number of oracle database related scripts that utilize the environment variables $ORACLE_SID and $DBNAME. In a single instance database the $ORACLE_SID is the same as the database name $DBNAME. So we have simply set DBNAME = $ORACLE_SID. However, now that we are clustering with RAC,... (5 Replies)
So, I can't figure out how to do a previous question with printf, so I'm taking a different approach. Suppose I have a set of numbers:
1200,135.000000,12.30100,3212.3200,1.759403,,1230,101.101010,100.000000
I want to remove all trailing zeroes after the decimal, and, if it ends up orphaned,... (8 Replies)
Hello All,
I have a csv file with 3 columns. The file which looks like this
47850000,100,233
23560000,10000,456
78650000,560000,54
34000000,3456,3
The first column has 4 trailing zeros. I have to remove 4 trailing zeroes from 1st field. The output file should appear as follows.
... (12 Replies)
Korn Shell on AIX 6.1
In one of our directories, we have 2 files with same names but one of those file's name has 3 trailing spaces
ls *.ctl
rconf.ctl
rconf.ctl #this file has 3 trailing spaces
Is there any way we could display these trailing spaces ? (6 Replies)
Hi all,
I haven't needed to do any shell based editing for nearly 20 years, and no amount of searching around has found me a solution to this very simple problem :-(
I have a csv file.
Some lines have three commas at the end. This means the invoice hasn't been paid.
I'd like to use sed / grep... (4 Replies)
I have been given a shell script that I need to amend. To do the following
extract the filename from the flag file by removing the .flag extension.
# Local variables
# Find if the flag files exists
MASK=coda_mil2*.flag
# Are there any files?
bookmark="40"
fileFound=0
ls -1... (3 Replies)
I have been trying to remove empty lines and lines just filled with spaces. I have used the following command which does work.
sed -i "/^\s*$/d"
Except it leaves one single trailing line at the very end of the file. For the life of me I cant figure out why I cant remove that last trailing... (2 Replies)
Discussion started by: user8282892
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)