10-25-2017
What do you need the single quotes for? Did you try without?
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1. Shell Programming and Scripting
Hi,
I have a challenging task,in which i have to find the duplicate files by its name and size,then i need to take anyone of the file.Then i need to open the file and find for more than one pattern and count of that pattern.
Note:These are the samples of two files,but i can have more... (2 Replies)
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2. UNIX for Advanced & Expert Users
hi all..
I dont know how to search for a string in a file.. I have tried doing.. I did google but didnt get effective answers..my code is as follows:
int search(char* filename,const char*
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3. Shell Programming and Scripting
Hi,
I have a .txt file (uniqfields.txt) with 3 fields separated by " | " (pipe symbol). This file contains unique values with respect to all these 3 fields taken together. There are about 40,000 SORTED records (rows) in this file. Sample records are given below.
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4. Shell Programming and Scripting
I'm trying to write a script that will look in an /exports folder for the oldest export file and move it to a /staging folder. "Oldest" in this case is actually determined by date information embedded in the file names themselves.
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5. Shell Programming and Scripting
I am trying to find for the pattern in first 5 bytes of every line in a text file and then generate a new file with the pattern found.
Example: expected pattern is '-' to be serached in first 5 bytes of file only.
Input File
ab-cd jan-09
ddddd jan09
cc-ww jan09
dsgdq jan-09
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6. Shell Programming and Scripting
Hi ,
Please help with the following questions
1) how can i find size of a file ? i have written du -k $flname > s1 . Is this right ?
Any other better suggeastions ?
2) how do I use mv command for moving the file ? I need the syntax with some examples
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7. Shell Programming and Scripting
Hi.,
How to extract the extension of a file which are present in the directory?. In my script I tried something like:
echo abc_ss_222_54.txt | awk -F"" '{print $5}'
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8. UNIX for Dummies Questions & Answers
So, I know how to do some of this stuff on an individual level, but I'm drawing a blank as to how to put it all together.
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9. Shell Programming and Scripting
Hi,
I am trying to find a file that have a different name than it should be processing, the file name is ( Fifa15 )
is there a command to use?
I got that file by
ps -ef | grep fifa15
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10. UNIX for Beginners Questions & Answers
Text in input file is like this
<title>
<band height="21" isSplitAllowed="true" >
<staticText>
<reportElement
x="1"
y="1"
width="313"
height="20"
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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)