05-31-2010
sudo version 1.6.6
$ sudo -V
Sudo version 1.6.6
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hey, I've just started learning shell script today.
How would I write a bash script file that changes file names from uppercase to lowercase in that directory, the program should warn the user and NOT overwrite the existing file if it's already in lowercase?
for example in a directory i... (1 Reply)
Discussion started by: lgd923
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2. Shell Programming and Scripting
How to overwrite every time a particular portion of a file?
---------- Post updated at 02:16 PM ---------- Previous update was at 02:07 PM ----------
I have a file whose contents are something like:
Output of "apachectl fullstatus" command:
---------------------------------------------... (3 Replies)
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3. Shell Programming and Scripting
Hi freinds,
My problem is I have a script which is used for our office work...
in that with my userid i can append the LOGFILE with the output which i get while running the script..
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4. Shell Programming and Scripting
Hi,
1)I have two zip files a.zip and b.zip.
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5. Shell Programming and Scripting
I am writing a BASH script to update a webserver and then restart Apache. It looks basically like this:
#!/bin/bash
rsync /path/on/local/machine/ foo.com:path/on/remote/machine/
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Discussion started by: fluoborate
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6. Linux
Long story short, there was some sort of corruption with my ide and the script I was working on has been over written with nothing (the file is blank now). The IDE doesn't store a back up from what I know (I'm using notepadd++ in wine lol I know I know I'm addictted to the nppftp sidebar and geany... (1 Reply)
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I have loads of files in different directories which I do miner changed on them and till now I have to create totally new directories for them, specially as I deal with a whole directory at once :wall::wall::wall::wall:
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e.g.
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8. Shell Programming and Scripting
I have a script, which runs through cronjob every night 9 PM. It is supposed to do following tasks --
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9. Shell Programming and Scripting
Hi, An application is transferring a file to linux system with same file name. As file is transferring with same name always file will be overwritten. In this case we want to know what times file was overwirtten like below.
Modify: 2014-05-12 00:52:01.000000000
Modify: 2014-05-12... (2 Replies)
Discussion started by: Satyak
2 Replies
10. Shell Programming and Scripting
hi
i have a file as in follwoing:
cat apple.txt
Apple is a fruit
But this fruit is costly
Now I used the sed command and i see output as in following
# sed 's/fruit/healthy &/' fruit.txt
Apple is a healthy fruit
But this healthy fruit is costly
#
sed works fine here. But... (2 Replies)
Discussion started by: Priya Amaresh
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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)