In the following code snippet you are trying to subtract one datestring from another
e.g. 20080721 - 20060328. This is not how you calculate date differences. Have a look in the FAQs on this site for "Date Arithmetic" for further information on how to actually calculate the difference between two dates.
Hi All..
Does anyone have a useful function where I can enter two date/timestamps and it calculates the difference in time in hours, minutes and seconds between the 2?
Any feedback much appreciated. :D
Kind Regards
Satnam (1 Reply)
Hi,
i have one hard coded time which will be 23:45 and one will be sysdate (same date) and time less than 23:45.
i want to start my job at 23:45 and the input file will be arriving before that. so i want to make sure that the task starts only at 23:45 and from the input file time till 23:45... (3 Replies)
Hi,
Please help me in calculating the time difference between below mentioned timestamps.
a=07/17/2007 02:20:00 AM MST
b=07/17/2007 02:07:46 AM MST
Thanks (2 Replies)
Hi Experts...
I want to calculate the time difference between two date-time values (using ksh). It can return the difference in hours (or whatever..)
For eg: time_diff "09/12/2009 12:30" "09/10/2009 12:30" should return 1464 hours...
$time_diff "09/12/2009 12:30:00" "09/10/2009... (5 Replies)
Hi,
I have a tab delimited file with GMT time. How to convert the GMT to PST time and store the line only if date falls to 2 days ago date.
Say today is 16, date should be of 14. or else remove the line
abc - -
efg - -
hij - -
kln - - ... (10 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)
Need some help please.
I am running SCO Openserver 5.07 on a Windows 2003 Server with VMware Server 1
If I run
# ps -ef|grep /etc/cron
the date that it shows the cron process started is older than the date I get from running the uptime command.
In other words it looks like the date... (2 Replies)
Is this way of finding the time difference a correct way of doing it or is it error-prone.
#****Check if lastrun exist. If exists check if the difference is 1 hour or not and act accordingly***********************
if ; then
lastrun_time=`cat $LOG_DIR/lastrun`
curr_time=`date +%s`
... (4 Replies)
Hi All
I want the time difference from current date time
For eg. From current date time i want to subtract 10 hrs and after subtracting i want the resultant in date time in MySql (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)
Discussion started by: i150371485
2 Replies
LEARN ABOUT MINIX
pnmarith
pnmarith(1) General Commands Manual pnmarith(1)NAME
pnmarith - perform arithmetic on two portable anymaps
SYNOPSIS
pnmarith -add|-subtract|-multiply|-difference|-minimum|-maximum. pnmfile1 pnmfile2
DESCRIPTION
Reads two portable anymaps as input. Performs the specified arithmetic operation, and produces a portable anymap as output. The two input
anymaps must be the same width and height.
The arithmetic is performed between corresponding pixels in the two anymaps, as if maxval was 1.0, black was 0.0, and a linear scale in
between. Results that fall outside of [0..1) are truncated.
The operator -difference calculates the absolute value of pnmarith -subtract pnmfile1 pnmfile2, i.e. no truncation is done.
All flags can be abbreviated to their shortest unique prefix.
SEE ALSO pbmmask(1), pnmpaste(1), pnminvert(1), pnm(5)AUTHOR
Copyright (C) 1989, 1991 by Jef Poskanzer. Lightly modified by Marcel Wijkstra <wijkstra@fwi.uva.nl>
26 August 1993 pnmarith(1)