I need 1 more help.. I promise this is gonna be the last time I bug u :P
My source file :
My destination file :
After I run your script
I found out that I lost the "CST" words at the beginning (line 3 & 4) of the file as below :
The fields that I want the values to be changed are changed correctly though.
How do I maintain the "CST" word?
Thanks Guru.. you are so kind
Last edited by luna_soleil; 08-19-2010 at 05:17 AM..
i am using perl in win2000advanced server...
---------------------------
perl -version:
---------------------------
This is perl, v5.6.1 built for MSWin32-x86-multi-thread
(with 1 registered patch, see perl -V for more detail)
Copyright 1987-2001, Larry Wall
Binary build 638 provided by... (1 Reply)
How to change a directory on windows via perl script.
I wanna mount a share on windows via perl script.
I have used:-
system("dir");
gives the list of directories in the drive i am.This command works well.
Now i want to move from c drive to z drive via perl script.I am using:-
... (2 Replies)
Hi guys I want to print the values by using this script but its giving the no of rows and columns as input instead of values
Would you plz help me on this
FILE- chr1.txt
1981 1
1971 1
1961 1
1941 1
perl script
#!/usr/bin/perl -w
$infile1 = 'chr1.txt';
$outfile3 = 'out3.txt';
... (3 Replies)
Let say in a file I have lines of data like this :
13;2073;461496;15075341;3;001f7d3a;2042063674;
13;2074;461446;15080241;6;001ed33a;2042020154;
13;2075;461401;15085270;6;001f593b;2042054459;
13;2076;461381;15087160;6;001f7483;2042061443;
13;2077;461419;15083419;6;001eca1a;2042017818;
I... (3 Replies)
Hi,
I am new to UNIX and shell scripting.
I have to create a shell script(ksh) which parses log4j.xml file for a given webservice name and change the corresponding value from INFO to DEBUG or vice-versa.
My log4j.xml looks like:-
<!-- Appender WEBSERVICENAME-->
<appender... (3 Replies)
Hello,
I am working on a script to get values from 2 files, and write to a new result file.
File 1: 8-columned file separated by space:
SerialNumber-Abc123 ID-1234:0 Name-xxx Class-yyy Object-zzz Source-aaa Value-bbb Comments-ccc
SerialNumber-Abc124 ID-1234:1 Name-xxx Class-yyy... (1 Reply)
Greetings all,
If I have a SH script that calls a PERL script in the following way:
perl $HOME/scripts/config.properties
And in the config.properties PERL file, this Perl script only sets a number of environmental parameters in the following way:
#!/usr/bin/perl
$VAR1 = (
... (3 Replies)
hi,
I have a local.conf file which has the first line
TOPDIR = "/home/mvdev/workspace/boxer". I want to replace the value to
"/home/common/workspace/mirror". I tried the following perl command that is
perl -p -i -e 's/Path/path1/g' myfile.txt then
sed... (7 Replies)
Hi ,
I have file FSN.log which contains number 100. i have other Perl script when i run it , it ll increment this FSN.log value.
now my requirement is
when the count in FSN.log becomes 999, it should make the value to 100 again and Perl script to change the date or it should make the date... (2 Replies)
This is my first time posting here...so be gentle.
Suppose I have a test.conf file that contains a value such as a IP. I would like to be able to use the Dialog Utility in Linux to allow me to enter the new IP in a Dialog form...and the results get saved into the test.conf file in the place... (4 Replies)
Discussion started by: calahanp
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)