Hi All,
can any one help me fix the error in this - i am still a novice in shell programming. I got this code after some googling now the code works with all the dates( as much as i know) except for 08 th and 09th of every month. can any one of you please help me fix this issue?
Thanks in... (11 Replies)
is there any ways to get the time difference between 2 dates in UNIX?
for example, For below date the outut should come 22 minutes
startdate enddate
========= =======
06/17/2008 13:25 06/17/2008 13:47
For, below date, the output should come 1462 minutes
... (5 Replies)
Hi,
START_TIME :- "10-NOV-2009 00:00:04"
STOP_TIME :- "10-NOV-2009 00:05:47"
Please help to find difference between these two.
Searched for the same topic but did not find an answer for the same time format :(
Regards,
Robin (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)
I have 2 variables
MTIME="Jan_2_2012_23:55:49"
SCH_TIME="Jan_03_2012_00:32:28"
I want to find the time taken (in seconds) between MTIME and SCH_TIME.
Is there any way by which this can be done in Unix Shell Script? (4 Replies)
A report needs to come some what similar to this
No of elements Stream Batch No Load time
A B C D
A,B,C im able to get quite easily
wc -l /usr/local/intranet/areas/prod/output/SRGW_0?/*/MESSAGE_T.dat
O/P of above command.
A B C ... (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)
Hi anyone can help?
How to calculate total number of weeks from a specify date, for example, 01 Jan 2012.
Thx!
https://www.unix.com/images/misc/progress.gif (1 Reply)
Hi All :o,
I have some log files which contains these informations:
2013-04-24 09:11:34.018 INFO XXXXXXXXXXXX
2013-04-24 09:11:34.029 INFO YYYYYYYYYYYY
2013-04-24 09:11:34.039 INFO ZZZZZZZZZZZZZZZ
2013-04-24 09:12:21.295 INFO TTTTTTTTTTTTTTT
2013-04-24 09:12:21.489 INFO... (3 Replies)
There are 2 dates,
Tue Oct 1 13:40:19 2013
Sun Sept 30 10:26:23 2013
I have multiple dates like the above one. How do I calculate the date time difference and display in another column in Shell script. Please help. (3 Replies)
Discussion started by: tanmoysays
3 Replies
LEARN ABOUT REDHAT
pnmpsnr
pnmpsnr(1) General Commands Manual pnmpsnr(1)NAME
pnmpsnr - compute the difference between two images (the PSNR)
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)