9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I try to connect to Oracle through cygwin, but it fails.
The Oracle version 11.2 is installed on a Windows 2003 server.
Cygwin and Perl is installed on the same server.
cygwin>uname -a
CYGWIN_NT-5.2 N0871 1.7.9(0.237/5/3) 2011-03-29 10:10 i686 Cygwin
cygwin>perl -v
This is perl, v5.10.1... (3 Replies)
Discussion started by: MSiipola
3 Replies
2. Shell Programming and Scripting
Hi all,
Using sh/csh, unfortunately shell scripts are not my strong suit.
Trying to write a script that gets called from a program for pre-processing.
The program passes individual components of a UNC (//server/path1/path2/filename).
Thus the unc path of: //server/path1/path2/filename, is... (7 Replies)
Discussion started by: Festus Hagen
7 Replies
3. Shell Programming and Scripting
Hello,
I searched the forums and didn't see a situation like this:
I cannot figure out how to parse out just the file name from the full path. The path looks like this:
\\foo\bar\filename.ext
I don't think something like 'cut' will work so I tried to whip up a regex but couldn't get it... (12 Replies)
Discussion started by: bytesnoop
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4. Shell Programming and Scripting
I am having the following problem. I am having a lot of files (test_1_01.hea, test_1_02.hea, etc) with the content:
project_directory /net/1/d_1/5/
tmp_directory /net/1/d_1/5/
material_directory /net/1/d_1/5/
And I have to substitute the filepaths with new counted ones where the... (3 Replies)
Discussion started by: ergy1983
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5. Shell Programming and Scripting
hai everybody - wish you a happy and prosperous new year
I want to connect to NCBI database and I need to track the updates made on database automatically.
Can I do this in PERL, if yes means , please guide me ...............
Thank You (1 Reply)
Discussion started by: pnehru156
1 Replies
6. Shell Programming and Scripting
Hi Friends,
I am having Perl 5 and Oracle 9i. I just wanna to connect Oracle DB & to perform some select query statement.
Could anyone pls let me know.
I've tried below command which i found in some website, But it throws some error.:confused:
Executed:
perl -e 'use DBI; print... (1 Reply)
Discussion started by: Vijayakumarpc
1 Replies
7. Linux
sir
plz let me know
how can i connect to my company domain my linux machine.
and get mail as i get in outlook,
n others can c me in network. (1 Reply)
Discussion started by: gauravsharma29
1 Replies
8. UNIX for Advanced & Expert Users
I have a samba server and a raid SAN which is actually running samba. Neither one lets me access anything on the samba unix side. I really do not know where to look anymore. there are no errors. When I try to connect to the samba server I get prompted with login and password repeatedly.
Frank (4 Replies)
Discussion started by: frankkahle
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9. Shell Programming and Scripting
Hello
im trying to find way to connect to soulseek with perl to try and
work with soulseek in none graphic mode , can perl do that ?
thanks (0 Replies)
Discussion started by: umen
0 Replies
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)