Hi experts,
I am reading two log files and passing dates as output to a txt file.
Code is given below:
echo "Start Time:" >> Report.txt
cat start.log | while read LINE1
do
echo $DATE1 >> Report.txt
done
echo "End Time:" >> Report.txt
cat end.log | while read LINE2
... (7 Replies)
Hi, I'm a newbie to unix. I have a txt file with my data, a list of events. Each event comes with a unix time. I want to seperate a months worth of events into those that occur during the day, and those at night. I have no clue how to go about this, please can someone push me in the right... (6 Replies)
i would need some help in setting the value of a variable (TIME_NOW) depending on the time of the day ...e.g.
if today's date is 12th April 2009 and if the current time is between midnight and 16:59:59 hrs then the TIME_NOW should be yesterday's date i.e. TIME_NOW=11
else if the current time... (3 Replies)
Hello All,
I have a problem calculating the time difference between start and end timings...!
the timings are given by 24hr format..
Start Date : 08/05/10 12:55
End Date : 08/09/10 06:50
above values are in mm/dd/yy hh:mm format.
Now the thing is, 7th(08/07/10) and... (16 Replies)
Hello!
I need to calculate number of days between two dates.
The first date is in format of string.
The second one is in format of date (current date):
#!/usr/bin/ksh
export ORACLE_HOME=/software/oracle/PROD10gR2
cd /etc/ORACLE/WALLETS/oracle
export EXP_DATE=`. $ORACLE_HOME/bin/orapki cert... (1 Reply)
I have a question i need clarification. We had a problem on a p520 system and had to pull the battery on the service processor card. That did the trick and system booted. We forgot to set the time in the service processor before booting. Once AIX was booted we changed the date and time there. ... (1 Reply)
Hi Friends,
I have 2 varaibles which contain
START=`date '+ %m/%d/%y %H:%M:%S'`
END=`date '+ %m/%d/%y %H:%M:%S'`
i want the time difference between the two variables in Seconds.
Plz help. (2 Replies)
Need assistance . Below code gives me the date but I wanted output as day of the week (wday) .
Code:
use Time::Local;
my $time=timelocal(1,2,3,9,11,2013);
$theTime = localtime($time);
print "$theTime\n";
Result:
Mon Dec 9 03:02:01 2013
Wanted output as only Mon (2 Replies)
Discussion started by: ajayram_arya
2 Replies
LEARN ABOUT MINIX
pnmpsnr
pnmpsnr(1) General Commands Manual pnmpsnr(1)NAME
pnmpsnr - compute the difference between two portable anymaps
SYNOPSIS
pnmpsnr [pnmfile1] [pnmfile2]
DESCRIPTION
Reads two PBM, PGM, or PPM files, or PAM equivalents, as input. Prints the peak signal-to-noise ratio (PSNR) difference between the two
images. This metric is typically used in image compression papers to rate the distortion between original and decoded image.
If the inputs are PBM or PGM, pnmpsnr prints the PSNR of the luminance only. Otherwise, it prints the separate PSNRs of the luminance, and
chrominance (Cb and Cr) components of the colors.
The PSNR of a given component is the ratio of the mean square difference of the component for the two images to the maximum mean square
difference that can exist betwee any two images. It is expressed as a decibel value.
The mean square difference of a component for two images is the mean square difference of the component value, comparing each pixel with
the pixel in the same position of the other image. For the purposes of this computation, components are normalized to the scale [0..1].
The maximum mean square difference is identically 1.
So the higher the PSNR, the closer the images are. A luminance PSNR of 20 means the mean square difference of the luminances of the pixels
is 100 times less than the maximum possible difference, i.e. 0.01.
SEE ALSO pnm(5)
04 March 2001 pnmpsnr(1)