07-15-2013
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1. Shell Programming and Scripting
Hi All,
Wish you a Happy New year...
I have to find the difference between two dates, the result should be the number of days. I have seen the "datecalc" function. Its good, can I have any other alternative.
Thanks in Advance
Raju (4 Replies)
Discussion started by: rajus19
4 Replies
2. Shell Programming and Scripting
Hi All
How to get the difference between two dates in no of days ??? My date format is like this YYYY/MM/DD. I have to get the no of days between two dates in the given format.
I tried to search the forum but nothing came up similar to my requitement. Your help will be appreciated.
... (1 Reply)
Discussion started by: csaha
1 Replies
3. Shell Programming and Scripting
Hello,
I would like to find out the number of days between two dates of the format yyyy-mm-dd.
Any help on this is highly appreciated.
Thanks. (6 Replies)
Discussion started by: Data469
6 Replies
4. Shell Programming and Scripting
Hi all.
My question may seems to be similar to one that already been here. But i need a little other solution.
I have two dates in format dd/mm/yyyy. I need to find number of days between them. I need to do it in bash script.
I am running on Solaris machine and have cutted 'date' command version... (1 Reply)
Discussion started by: kukuruku
1 Replies
5. Shell Programming and Scripting
Hi,
Is there any way I can get the difference between two dates in terms of days?
I have used this method so far, but I cant format it in terms of days.
@a=&DateCalc($date1,$date2,0);
The o/p that I am getting is sort of like this:
+0:0:0:4:0:0:0
I just want to get 4 days as an o/p.... (1 Reply)
Discussion started by: King Nothing
1 Replies
6. Shell Programming and Scripting
Hello!
i need to find files lower and bigger that one date i pass, i search in the man find, but i didn't find anything, the only that i find is the parameter -mtime, in this parameter i can pass a number of days, but i need to know the difference between dates, any built-in function for do... (15 Replies)
Discussion started by: claw82
15 Replies
7. Shell Programming and Scripting
Hi!
I have two parameters like this: YYYY-MM-DD YYYY-MM-DD
My question is, there is a direct command for get the elapsed time between the 2 dates, or I have to find another way?
Thx! (1 Reply)
Discussion started by: MalaTomi
1 Replies
8. Shell Programming and Scripting
hi all,
I need a help for below requirement.
Difference between two dates"12-11-2009" and "03-25-2012" (mm-dd-yy format") in weeks and days and hours
Please help me for this. Thanks in adv....
I am working in AIX, so dont have below command:-
date --version (2 Replies)
Discussion started by: gani_85
2 Replies
9. Fedora
I have a script which is printing date in below format while writing the logs.
theDate=`date +"%m%d%Y"`
theTime=`date +"%H%M%S"`
echo $theDate $theTime
How can i find out difference current time and above format. Appreciate your help. (6 Replies)
Discussion started by: srikanth38
6 Replies
10. UNIX for Beginners Questions & Answers
Hi There
I am trying to find the difference between two dates in seconds, by taking the first 10 digits of the file name itself, which I have done as shown below:
current_time=`date +%s`
last_login_of_tim=`date -d @1489662376 +%s`
diff_sec=$(($current_time-$last_login_of_tim))
... (5 Replies)
Discussion started by: simpsa27
5 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)