I need to keep track of this output
echo "dis chs(*)" | runmqsc | grep RUNNING | wc -l
I need to record that count once an hour 24 hours a day and write to a file with the date and time it was run. Any idea on how to do this. (5 Replies)
hello,
I have the following basic script which input the period, but I would like to output is period -1.. how?
echo Please input period (yyyymm):
read PERIOD
OUTPUT=$PERIOD -1
echo " you request period -1 is $OUT"
input 200705
output 200704
input 200701
output 200612
The above... (4 Replies)
Hello,
I'm able to trim down the log message to "192.168.1.0.", but can't get rid off the last period.
Can any one help me on the syntax to get rid of the last period?
Basically, I want "192.168.1.0" instead of "192.168.1.0."
Thanks, (4 Replies)
Hi,
My apologies if this question is so trivial ... I guess there really is a room for dummies ... :o
Anyway, just wanting to know if someone can please explain what the dot (.) infront of the command or script does and why it works and does not work in the following?
... (1 Reply)
Hi everyone,
I want to use grep to search a patern in a folder. But the folder contains millions of files which makes a big delay if I want to search all the files in the folder. I have been trying to use grep to search the last 10 days of all the files. but no success yet! could you advice? ... (2 Replies)
stupid question: trying to use sed to do the following...
$ echo '12345' | sed 's/./&./g'
1.2.3.4.5.
needed this instead: 1.2.3.4.5 but how? please advise (7 Replies)
I need to add a newline after every period.
Here is some sample text.
The mechanisms for this type of conditioning are probably the same in humans. According to PET scans on young adults, when pairing a stimulus with an airpuff produces a conditioned eye blink, activity increases in the... (4 Replies)
All,
How to get the list of files through a unix command which exists / created / updated between 8 PM to 11:59 PM from a particular location.
Regards
Oracle User (3 Replies)
Discussion started by: Oracle_User
3 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)