i try to change the date-format from DD/MM/YYYY into MM/DD/YY.
Input-Data:
Output-Data should be:
i try to do it with awk ....
but awk "ran out" -- i have still not understand, what awk do with the tripple %s. can someone help me please.
I need to capture a file's creation/modification date and time and convert this to a different format, whilst I can easily get the existing format from a ls -l | awk ' { print $......}' or a cut command I do not know how to convert it to a desired format?
I should add that at present the ls -l... (1 Reply)
Hi
Please anyone to help to write script to convert date to 'yyyy-mm-dd'(If column is date convert) because my file has large and lot of date colums.
If file is small ,using awk command to achive.
cat file1|awk 'BEGIN {FS=OFS='|'}... (7 Replies)
Hi,
I am having couple of files which i used to copy from windows to Linux, so now in case of text files (CTRL^M) appears at end of line. I know i can convert this windows format file to unix format file by running dos2unix.
My requirement here is that i want to do it automatically using a... (5 Replies)
Dear Friends,
We have date in output as MM/DD/YYYY format and I want to convert it in DD/MM/YYYY format.
e.g.
12/31/2010 to 31/12/2010
We have checked forum for the solution but we are not getting matching query.
Please guide us
Thanks
Anushree. (6 Replies)
I have an assignment in a Linux class I am taking. It has multiple scripts. Basicly when it runs it asks the user name and shows information about the user from the /etc/passwd and /etc/shadow files. The one I need help with is the one that reads the /etc/shadow file. I need to format the date into... (1 Reply)
Hi All,
I am new to this forum, could any one help me out in resolving the below issue.
Input of the flat file contains several lines of text for example find below:
5022090,2,4,7154,88,,,,,4/1/2011 0:00,Z,L,2
5022090,3,1,6648,88,,,,,4/1/2011 0:00,Z,,1... (0 Replies)
Hi All,
I am new to this forum. Could anyone help me to resolve the following issue.
Input of the flat file contains several lines of text for example find below:
5022090,2,4,7154,88,,,,,4/1/2011 0:00,Z,L,2
5022090,3,1,6648,88,,,,,4/1/2011 0:00,Z,,1
5022090,4,1,6648,88,,,,,4/1/2011... (6 Replies)
Dear all,
I have 2 questions.
I have a file with many rows which has date of the format YYYYMMDD.
1. I need to change the date to that weeks friday date(Ex: 20120716(monday) to 20120720). Satuday/Sunday has to be changed to next week friday date too.
2. After converting the date to... (10 Replies)
Dear Friends,
I am in urgent need for awk/sed/sh script for converting a specific data format (.txt) to .xls.
The input is as follows:
>gi|1234|ref|
Query = 1 - 65, Target = 1677 - 1733
Score = 8.38, E = 0.6529, P = 0.0001513, GC = 46
fd sdfsdfsdfsdf
fsdfdsfdfdfdfdfdf... (6 Replies)
Discussion started by: Amit1
6 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)