06-30-2012
Quote:
Originally Posted by
alister
In my humble opinion, spaces in filenames are not a big deal.
Is it? Even in korn?
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1. Shell Programming and Scripting
What is wrong in this:
One file in /tmp is test.txt...file has three rows as follows:
YES I M HERE
12345
67890
Second file test2.txt:
status = `grep -i "YES I M HERE" /tmp/test.txt`
print "$status"
if we execute test2.txt It is returning 'status' not found (4 Replies)
Discussion started by: yale_work
4 Replies
2. Shell Programming and Scripting
Hi One to All
iam new this site,i hopei will get some response for my question.
My requirement is:i will pass a string(i.e Account number), it should search the corresponding log file in the path, after that it should copy the file in particular path, before that it should ask the path... (3 Replies)
Discussion started by: saic
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3. Shell Programming and Scripting
Hi All
Iam new this forum,
just i want know someting about the files:
My req: i have file in that i want to search one string, if it is avaible then show the line ,otherwise it will show that the string is not available in the file,
for this i am useing if then else with out - q... (1 Reply)
Discussion started by: psi
1 Replies
4. Shell Programming and Scripting
Hi Everyone,
I am new to this forum and new to sed/awk programming too !!
I need to find particular string in file1(text file) and replace it with a value from another text file(file2) the file2 has only one line and the value to be replaced with is in the second column.
file 1:
(assert (=... (21 Replies)
Discussion started by: paramad
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5. Linux
Hi all,
I have a question..
Here is my requirement..I have 500 files in a path say /a/b/c
I have some numbers in a file which are comma seperated...and I wanted to check if the numbers are present in the FileName in the path /a/b/c..if the number is there in the file that is fine..but if... (1 Reply)
Discussion started by: us_pokiri
1 Replies
6. Shell Programming and Scripting
Hi,
I want find multiple string in one file using find coomand.
And keeping it in one variable.grep is not working. (5 Replies)
Discussion started by: vivek1489
5 Replies
7. Shell Programming and Scripting
Dear all,
I need your help, I have file like this:
file1:23456
01910964830098775635
34567
01942809546554654323
67589
26546854368698023653
09778
58716868568576876878
08675
86178546154065406546
08573
54165843543054354305
.
.file2:
23456 25
34567 26
67589 27 (2 Replies)
Discussion started by: attila
2 Replies
8. Shell Programming and Scripting
Hi All,
I'm trying to insert a string into a file at a specific location.
I'd like to add a string after the parent::__construct(); in my file.
<?php if (! defined('BASEPATH')) exit('No direct script access allowed');
class MY_Controller extends CI_Controller {
function... (6 Replies)
Discussion started by: jjkilpatrick
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9. Shell Programming and Scripting
Hello
I would like to get know how to do this:
I got a big file (about 1GB) and I need to find a string (for instance by grep )
and then find all records in this file based on a string.
Thanks for advice.
Martin (12 Replies)
Discussion started by: mape
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10. Shell Programming and Scripting
Hello Forum.
I have a file called abc.sed with the following commands;
s/1/one/g
s/2/two/g
...
I also have a second file called abc.dat and would like to substitute all occurrences of "1 with one", "2 with two", etc and create a new file called abc_new.dat
sed -f abc.sed abc.dat >... (10 Replies)
Discussion started by: pchang
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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)