Hi All,
I am new to scripting.
my requirement is ,
I want to know whether the file(i.e., log file) is updating or not.
It should search for every 15 min. If it is not updating means it needs to send out a automatic mail.
can you please help me in this. (2 Replies)
Hi,
The scenerio is that I want to replace a text in one particular line of a file. But when I am using the sed it's replacing all the occurences of that text.
Like the file is:
>cat test
DNGGF10 :None :Test
DNGGF11 :ABC :Test1
DNGGF12 :None :Test2
DNGGF13 :None :... (4 Replies)
Hello,
I read and search through this wonderful forum and tried different approaches but it seems I lack some knowledge and neurones ^^
Here is what I'm trying to achieve :
file1:
test filea 3495;
test fileb 4578;
test filec 7689;
test filey 9978;
test filez 12300;
file2:
test filea... (11 Replies)
Hi
in my solaris 9 system wmptx file is not updating so it is not recording any login or logout or any other entry.
can any one tell me how to solve this problem (0 Replies)
Hi Experts,
I have a requirement where i need to update the below items in file,
1. END TIME
2. PREV_STATUS
For the first time the PREV_status and end time of all job the job will be sysdate & NULL reply as below,
Session_name,Load Type,Frequency,Seesion End time,Prev_Status... (2 Replies)
Hi All,
Thaks for the help in my last thread. I have one more question. I have two files with ldap entries in it. One file contains all the user LDAP parameter entries (26 MB) and other file contains only the user id's that have to be inactivated. Unix script has to read from the file that has... (8 Replies)
I have a file of records all made up of single charactors that need to be updated using their row/column
(the dashes represent spaces as the html formatting of this text box when it posts removes the "nonessential" white space between the charactors)
file example
A 1 c
B 2 b
C 3 a... (2 Replies)
I can not seem to figure out how to update the attached match.txt column 2 using update.txt. However, only the text before the period in updat.txt appears in match.txt.
For example, in update.txt NM_001613.2 matches NM_001613 in match.txt, so is it possible to update the record in match.txt to... (8 Replies)
hi,
i have an csv(which is a month's log file containing userid and log in date ) file which has to be appended to another file say master.log.I need to compare the next month's log data to master.log file .In case, there is new log date for userid it has to get updated in master.log file or i... (2 Replies)
Discussion started by: preema
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)