I want to replace a Perl module name in all my Perl Scripts in the cgi-bin directory. How is it possible?
I have the following statement in my scripts
use myUtil;
I want to change it to
use myUtil777;
Regards,
Rahul (2 Replies)
Hello,
I have a Perl script that reads in an Excel spread sheet and formats the values into a text file. I am having trouble with one column that can have numbers or letters. Excel left justifies the values that start with a letter and right justifies the values that contain only a... (2 Replies)
Hi,
I have string like this:
$query="#1,apple";
$string=$query;
I want to replace #1 with fruit. I tried like this:
string=~s/#\d+/$query/ig;
print "\n string: $string\n";
It is working only when there is single #1 or #2 but when i give like #1,#2,#3,apple the above code... (2 Replies)
Hi,
I have a file with the following contents and i want to replace that value in a file with some other value.
#file.txt
/local/Disk/data
n
192.168.55.98
52035
3
1
2
1
1
192.168.55.98
Here is my code. (2 Replies)
I am trying to write a simple perl script to run on a FreeBSD machine.
There are alot of posts here, and I have read so many, yet can not get this script to run.
#!/usr/bin/perl
-e 's/\r\n/~/' infile.txt outfile.txt
I am trying to take a windows text file, move it into Unix, run a script on... (1 Reply)
Hello,
I am trying to change a value in a param file, with the Run time variable in .sh scripts
using perl command ,
==========================================
Param file
$$ID=<0>
$$Country=<Country>
==========================================
in the .sh script
val=33
I am... (5 Replies)
Hi,
I have a file with two string :
aa_bb_cc_def
gg_hh_jj_xyz
now i want a command in perl script, which gives me the result as :
aa_bb_cc.def
gg_hh_jj.xyz
Can anyone help me on this plz..
thanks in advane. (6 Replies)
Hi All,
I am having below issue could anybody help me.
$x= SELECT * FROM EMP --xyz this change is done in q2;
I want delete the charchters from -- to till the end.
I want $x to be
$x= SELECT * FROM EMP;
Thanks,
Vijay G (1 Reply)
Hi,
I have an input file and a config file which I need to lookup values in using Perl:
Input file:
ID, Value
COMP0,0
COMP1,1
COMP2,2
COMP3,3
COMP4,3
COMP5,5Config file:
ID, Operation
COMP0,((@COMP1@ + @COMP2@ + @COMP3@) / @COMP4@) + @COMP5@Expected output:
ID, Value
COMP0,7 # This... (0 Replies)
How can I achieve this? Perl would be awesome.
Input string a_b c //Note there is a blank here
Needed Output a_b_c
Thanks (4 Replies)
Discussion started by: dragonpoint
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)