Hi all, how could i do ?
I have a Rss file, i want to extract only the Urls (many) matching http://www.xxx.com/trailers/ from that file and copy into another file.
like
"
<pubDate>Wed, 29 Apr 2009 00:00:00 PST</pubDate>
<content:encoded><!Apple - Movie Trailers - The Hangover"><img... (3 Replies)
Hello everyone, this is my first post so please give me a hand.
I apologize for my English, I'll try to be clear with my request.
I need to write a script (Bash) which finds all the variables defined in the file .h of the folder and then writes the name of the files .c where these variables are... (1 Reply)
Hi there,
i'm having some problems just making an awk script (i've tried this way, but other way can be posible for sure), for the next file
file.txt
<register>
<createProfile>
<result>0</result>
<description><!]></description>
<msisdn>34661461174</msisdn>
<inputOmvID>1</inputOmvID>... (6 Replies)
Hi All ,
I need to extract the strings that are matching with the pattern : CUST.<AnyStringOfAnyLength>.<AnyStringOfAnyLength> from a file and then write all these string into another file.
e.g. If a file SOURCE contains following lines :
IF(CUST.ABCD.EFGH==1) THEN
CUST.ABCD.EFGH =... (7 Replies)
Hi All,
I am pretty new to pattern matching and extraction using shell scripting. Could anyone please help me in extracting the word matching a pattern from a line in bash.
Input Sample (can vary between any of the 3 samples below):
1) Adaptec SCSI RAID 5445
2) Adaptec SCSI 5445S RAID
3)... (8 Replies)
Guys, i'm new to shell scripting. Here's what i need.
I need a shell script which would read a file containing only 1 line which never changes.
File containts -
SQL_Mgd_Svc_ELONMCL54496 |EMEA\brookkev, EMEA\fieldgra, EMEA\tidmamar, EMEA\attfiste, EMEA\baldogar, EMEA\clarkia2, EMEA\conwasha,... (9 Replies)
I have a file a file having entries are like
@ram@sham@sita
@krishan@kumar
@deep@kumar@hello@sham
in this file all line are having different no of pattern-@.
need to fetch the substring after the last pattern.
like
sita
kumar
sham
thanks in advance (3 Replies)
Hi All,
I am writing the following Perl Scrip and need your help in Pattern matching :
I have the following Shell Script that would read line by line from the file (file_svn) and would inturn calls the Perl Script:
#!/bin/bash
perl_path="/home/dev/filter"... (2 Replies)
The sample file:
dept1: user1,user2,user3
dept2: user4,user5,user6
dept3: user7,user8,user9
I want to match by '/^dept2.*/' but don't want to have substring 'dept2:' in output. How to compose such regex? (8 Replies)
Discussion started by: urello
8 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)