Hi All
I am trying to replace some character using Sed , but i also need to use case commands
like this :
x=`who am i`
opt=`echo ${x} | cut -f1 -d' '`
case $opt in
unix) 'UNX'
My script asks the user to enter the source server and it gets the results
it has to reaplace the above... (5 Replies)
Dear All
Could you please advice how do we convert a unix file to dos
I know one command,ux2dos, which somehow does not work to give desired output
Inputs on this is appreciated
Thanks,
Suresh (3 Replies)
Hi,
Iam trying to convert date and time to milliseconds which iam using in a script on Sun Solaris.
I have searched the posts on the forum but i could not get any solution.
The format iam using in script is:
date -u "Thu Dec 24 00:01:00 EST 2009"
But i get a bad command error.
... (6 Replies)
hi all,
i need to measure time difference between the time a process started, to the time it ended. i am assuming the following are the steps:
1. output 'date' command at start time
2. output 'date' command at end time
3. subtract the two
question is, how do i subtract the two time... (4 Replies)
Hello Unix Gurus :
It would be really appreciative if can find a solution for this .
I have records in a file .
I need to Capitalize the records based on condition .
For Example i tried the following Command
COMMAND -->
fgrep "2000YUYU" /export/home/oracle/TST/data.dat | tr '' ''... (12 Replies)
Hi Friends,
I am not able to conver character set from UTF-8 to IBM-284 throwing an error "cannot open convertor" . Could you please help me how to get out of this error.
Below command is working fine
iconv -f ISO8859-15 -t UTF-8 fromfile.txt > tofile.txt
But the below command is... (2 Replies)
Hi all,
I have a requirement to convert a file from one format to another.
Parent file:
to
i.e.,
1.) all the lines which begin with "Sample:", should be converted in such a way that entire text after ":" gets converted into all-lower case.
2.) all the lines which begin with... (7 Replies)
Hi All ,
I have a mainframe file which contains the data in EBCDIC unreadable format.I have downloaded this raw unreadable file from mainframe system to windows in text format then I pushed to Unix system.Now I want to convert this file to ASCII readable format file in unix.Can anyone advise me... (2 Replies)
I already know about the docx2txt program, and it's extremely helpful. ssconvert is also really helpful, but unlike docx2txt, it works both ways. How does one convert a .txt file to .docx via CLI, or is it even possible??
This:
docx2txt example.docx
results in making a .txt file out of... (2 Replies)
Discussion started by: Huitzilopochtli
2 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)