05-23-2013
Can you show us what have you tried so far?
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1. UNIX for Advanced & Expert Users
I need a shell which makes a search of an UNIX script and them modifies. :confused:
vi $(grep -l 5 $(find . -name 'vellon.bcf' -print)) (1 Reply)
Discussion started by: jvellon
1 Replies
2. Shell Programming and Scripting
I have a csv file in which there are numbers like
078976/9XXX
098754/8XXX
I want to replace the XXX with null. I want to know the command/code to do this.
I know how to replace the whole word/number. But don't know how to replace a part of it.
Thanks in advance,
Mihir (3 Replies)
Discussion started by: mihirk
3 Replies
3. Shell Programming and Scripting
hi guys,
Suppose you have 100 files in a folder and you want to replace all occurances of a word say "ABCD" in those files with "DCBA", how would you do
it ???
jatin (13 Replies)
Discussion started by: jatins_s
13 Replies
4. Shell Programming and Scripting
I used the following script
cd pathname
for y in `ls *`;
do sed "s/ABCD/DCBA/g" $y > temp; mv temp $y;
done
and it worked fine for finding and replacing strings with names etc. in all files of the given path.
I'm trying to replace a string which consists of path (location of file)
... (11 Replies)
Discussion started by: pharos467
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5. UNIX for Dummies Questions & Answers
Hi all,
I'm looking to find and replace a string in all HTML files within a certain directory, including subdirectories. Normally, I would play with this a little to get it to work, but I can't mess this up, so I'm going to ask here.
Basically, I want to find "<title>" in all *.htm* files... (11 Replies)
Discussion started by: slothario
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6. Shell Programming and Scripting
Hi all
im having trouble starting with a shell script, i hope someone here can help me
i have 2 files
file1:
404905.jpg 516167
404906.jpg 516168
404917.psd 516183
404947.pdf 516250
file2:
516250 /tmp/RecyclePoster18241.pdf
516167 /tmp/ReunionCardFINAL.jpg
516168... (7 Replies)
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7. Shell Programming and Scripting
hello,
i 'd like your help about a bash script which:
1. finds inside the html file (it is attached with my post) the code number of the Latest Stable Kernel,
2.finds the link which leads to the download location of the Latest Stable Kernel version,
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8. Shell Programming and Scripting
Hi all
This is my first post. Please bear with me with all my mistakes. I started learning shell since couple of days now and this might be quite basic for all, i want to search for files in a directory containing specific string and replace it with new string. The code i wrote is quite bulky... (2 Replies)
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9. Shell Programming and Scripting
I want to find common line in two files and replace the next line of first file with the next line of second file. (sed,awk,perl,bash any solution is welcomed ) Case Ignored. Multiple Occurrence of same line.
File 1:
hgacdavd
sndm,ACNMSDC
msgid "Rome"
msgstr ""
kgcksdcgfkdsb... (4 Replies)
Discussion started by: madira
4 Replies
10. Shell Programming and Scripting
Hi All,
I have a XML file which is looks like as below. <<please see the attachment >>
<?xml version="1.0" encoding="UTF-8"?>
<esites>
<esite>
<name>XXX.com</name>
<storeId>10001</storeId>
<module>
... (4 Replies)
Discussion started by: Rajeev_hbk
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)