Hi Friends,
Can any one help with this:
I have a huge file with the format as
A SAM 4637
B DEPT1 4758 MILAN
A SMITH 46585
B DEPT2 5385 HARRYIS
B SAMUL 63547 GEORGE
B DANIEL 899 BOISE
A FRES 736 74638
I have to read this file and write only the records that starts with "B" only
... (5 Replies)
My Situation is
I have to read a date value from previuosly created file and need to increment the date in the newly created file. I need unix scripting for the above condtion.
Thanx in advance. (3 Replies)
Hi,
I need to truncate a file based on date.Suppose i have a log file which is getting updated every date,i need to keep 7 days worth of data(like sysdate-7) and rest i want to truncate it.Can some help me? (5 Replies)
I need to automate a weekly process of piping a directory list to a csv file. Normally I do
ls -l > files_04182010.csv (04182010 being the date..)
Can someome show me how I would script this, so that when the script is ran it grabs the current date and formats it and allows me to use that... (8 Replies)
Hi,
I need help with this-
input.txt :
L B white
X Y white
A B brown
M Y black
Read this input file and if 3rd column is "white", then add specific lines to another file insert.txt.
If 3rd column is brown, add different set of lines to insert.txt, and so on.
For example, the given... (6 Replies)
I have file listed like below
-rw-r--r--+ 1 test test 17M Nov 26 14:43 test1.gz
-rw-r--r--+ 1 test test 0 Nov 26 14:44 test2.gz
-rw-r--r--+ 1 test test 0 Nov 27 10:41 test3.gz
-rw-r--r--+ 1 test test 244K Nov 27 10:41 test4.gz
-rw-r--r--+ 1 test test 17M Nov 27 10:41 test5.gz
I... (5 Replies)
HI,
Can anyone tell me how to pull the date and file name separated by a space using the find command or any other command. I want to look through several directories and based on a date timeframe (find -mtime -7), output the file name (without the path) and the date(in format mmddyyyy) to a... (2 Replies)
Hi Guys,
I have certain files in my directory which gets appended with dates something like this
T1_aug17.txt
T1_Aug17.txt
T1_Sep17.txt
config.txt
T1
T2
my code:
curr_date=`date -d "$date" +%Y-%m-%d`
path=mydir
for file in `cat config.txt`
do
final_file=$(ls $path/ | grep -i... (12 Replies)
Hi All,
I am having a job and I need to send email when the job is running. On any other case (success,fail) I don't needed to send email. I check with BMC they told they dont have that in the version I am using.
So I created a dependent job and grepped for the status and sent email. My... (1 Reply)
Discussion started by: arunkumar_mca
1 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)