03-14-2011
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
set DAY=`date +%y%m%d`
set H=`date +%H`
set M=`date +%M`
mailx -s "$H-Mydata" myemail@mail.com<mydata
I am looking to set the current hour to have 1 hour less in the subject header:
For example: let's say the system time is 8
I want to have "7-Mydata" not "8-Mydata"
Can some1... (6 Replies)
Discussion started by: bobo
6 Replies
2. UNIX for Dummies Questions & Answers
My program:
__________________________________
#!/bin/ksh
DAY=`date +%y%m%d`
H=`date +%H`
M=`date +%M`
day=`date +%m/%d/%y`
let h=$H-1
echo DAY $DAY
echo H $H
echo M $M
echo day $day
echo h $h
_____________________________________
My result: (3 Replies)
Discussion started by: bobo
3 Replies
3. Shell Programming and Scripting
i have this script that checks for yesterday date and also specific hour in that
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TZ=`date +%Z`+24 ;a=`date +%Y-%m-%d %k`
cd logs
count=0
for i in DBMaint.log
do
cat $i | grep $a >> file12.txt
done... (0 Replies)
Discussion started by: ali560045
0 Replies
4. What is on Your Mind?
I had some free time at work today so I decided to get a little practice with my shell scripts (I'm pretty new to the whole UNIX thing).
I'm sure I'm not the only college student here so maybe this code will come in handy for future weekends.
#!/bin/sh
if
then
echo "No playlist... (0 Replies)
Discussion started by: thedoobieman5
0 Replies
5. Shell Programming and Scripting
I have a log like this:
Jan 26 13:59:41 server2 ntpdate: step time server 91.189.94.4 offset 0.065456 sec
Jan 26 13:59:41 server2 ntpd: ntpd 4.2.4p8@1.1612-o Fri Aug 6 22:49:54 UTC 2010 (1)
Jan 26 13:59:41 server2 ntpd: precision = 1.000 usec
Jan 26 13:59:41 server2 ntpd: ntp_io: estimated max... (2 Replies)
Discussion started by: Jotne
2 Replies
6. Shell Programming and Scripting
The requirement is, i need to search for the logs for particular duration. The logs are in the format
logfilename.2011-04-05-00
logfilename.2011-04-05-01
logfilename.2011-04-05-02
logfilename.2011-04-05-03
.
.
.
.
logfilename.2011-04-05-18
.
.
.
logfilename.2011-04-05-23
the time... (6 Replies)
Discussion started by: Amutha
6 Replies
7. Shell Programming and Scripting
I want to remove commands having no output. In below text file.
bash-3.2$ cat abc_do_it.txt
grpg10so>show trunk group all status
grpg11so>show trunk group all status
grpg12so>show trunk group all status
GCPKNYAIGT73IMO 1440 1345 0 0 94 0 0 INSERVICE 93% 0%... (4 Replies)
Discussion started by: Raza Ali
4 Replies
8. Shell Programming and Scripting
Hi friends, I want to convert 24 hour timing to 12 hour please help me...
my data file looks like this..
13-Nov-2011 13:27:36 15.32044 72.68502
13-Nov-2011 12:08:31 15.31291 72.69807
16-Nov-2011 01:16:54 15.30844 72.74028
15-Nov-2011 20:09:25 15.35096 ... (13 Replies)
Discussion started by: nex_asp
13 Replies
9. Shell Programming and Scripting
Hi guys
I want any script to get me next hour
For example
Nexthour.sh 2013022823
It get me result
2013030100
Thanks a lot , I'm using Solaris 10 (5 Replies)
Discussion started by: teefa
5 Replies
10. UNIX for Advanced & Expert Users
I want to get CPU average value only (not required user CPU & memory) with each hours on individual date. The sample output is below
| | | User |Memory| User |
Date | Time |CPU %|CPU % | % |Mem % |
03/02/2015|00:00:00| 24.56| 20.66| 89.75| 63.48|... (13 Replies)
Discussion started by: Saravanan_0074
13 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)