It's probably too late to help SkySmart, but I thought that I would post a followup anyway. In another thread I saw Corona688 perform date arithmetic via the -d parameter to date. This led me to believe that time arithmetic should be possible too.
I had trouble getting it to work and all the problems centered around timezone computations. The first thing following the time is assumed to be a timezone offset. Therefore I had to supply a superfluous +0000 to get past that. Next I had to defeat the normal timezone computation and I used -u to do that. Putting it all together...
Hi Friends :)
I have a long file having fields in the form :
Field1 yy/mm/dd hh:mm:ss Duration(Sec)
line 1) 123123 05/11/30 12:12:56 145
line 2) 145235 05/11/30 12:15:15 30
line 3) 145264 05/11/30 13:14:56 178
.
.
I want to subtract yy/dd/dd hh:mm:ss in line (2) from yy/mm/dd hh:mm:ss in... (1 Reply)
Hello,
Im writing a script using the ksh shell. I have 2 variables in the script:
CURRTIME
PREVTIME
Example, if CURRTIME=13:00, I want to somehow calculate what the time was an hour ago so that PREVTIME=12:00
Right now I have the following:
CURRTIME=`date +%H:%M`
How can I... (4 Replies)
i have the time 20100421043335 in format (date +%Y%m%d%H%M%S),and i want to be able to get the previous time 2 minutes ago,which is
20100421043135 (9 Replies)
need some help on the below requirement:
File1:
SV,22,20100501140000,JFK,RUH
SV,29,20100501073000,BOM,RUH
SV,29,20100501073000,SIN,RUH
third filed is datetime which is of the format (yyyymmddhh24miss)
File2
JFK,+,0500
BLR,-,0530
SIN,-,0800
for every line of file 1, take 4... (9 Replies)
Hi,
Need to subtract 5 seconds after syncing my Linux server from NTP like;
#ntpdate time.myorg.int.
This script will only run once in each morning at 9 AM.
Please help me. (4 Replies)
Hello All ,
Please support for below request
how to change format and subtract time and date and get average.
xxx 13-OCT-15 11.32.18.241000 AM 13-OCT-15 11.35.49.089080 AM
xxx 13-OCT-15 11.32.24.000000 AM 13-OCT-15 11.45.17.810904 AM
xxx 13-OCT-15 11.32.25.232000 AM ... (1 Reply)
INPUT:
16:45:51 10051 77845
16:45:51 10051 77845
16:46:52 10051 77846
16:46:53 10051 77846
Match the last PID then subtract second line time with first line.
Please help me with any command or script. (3 Replies)
SunOS -s 5.10 Generic_147440-04 sun4u sparc SUNW,SPARC-Enterprise
Hi,
In a folder, there are files. I have a script which reads the current date and subtract the modification date of each file.
How do I achieve this?
Regards,
Joe (2 Replies)
current date command runs well
awk -v t="$(date +%Y-%m-%d)" -F "'" '$1 < t' myname.dat
subtract 30 days fails
awk -v t="$(date --date="-30days" +%Y-%m-%d)" -F "'" '$1 < t' myname.dat
awk command in hp unix subtract 30 days automatically from current date without date illegal option error... (20 Replies)
Discussion started by: kmarcus
20 Replies
LEARN ABOUT CENTOS
dm_date
DM_DATE(1) User Contributed Perl Documentation DM_DATE(1)NAME
dm_date - print out the system date and time
SYNOPSIS
This performs the same operation as the unix 'date' command, but using the Date::Manip module.
dm_date [OPTION]... [+FORMAT]
DESCRIPTION
This displays information about the current system time, or some other time. Options are:
-h, --help
Print online help.
-d STRING, --date=STRING
Display time described by STRING. STRING can be any string which can be parsed by Date::Manip. Please refer to the Date::Manip::Date
documentation for details.
-f DATEFILE, --file=DATEFILE
This reads each line in DATEFILE, and extracts a date from it and prints out the information.
Blank lines and lines starting with a pound (#) are ignored. Lines not containing a valid date are also ignored.
-r FILE, --reference=FILE
Displays the last modification time of FILE.
-R, --rfc-2822
Displayc the date and time in RFC 2822 format.
Example: Mon, 07 Aug 2006 12:34:56 -0600
-u, --utc, --universal
Converts the date to UT (GMT) and prints out the information.
Only one of -d, -f, or -r should be included. If more than one is included, the first one from the list (-d, -f, -r) is used and any other
is ignored.
The format string starts with a plus (+) and contains any of the format directives described in Date::Manip::Date.
KNOWN BUGS
None known.
BUGS AND QUESTIONS
Please refer to the Date::Manip::Problems documentation for information on submitting bug reports or questions to the author.
SEE ALSO
Date::Manip::Date
LICENSE
This script is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
AUTHOR
Sullivan Beck (sbeck@cpan.org)
perl v5.16.3 2014-06-09 DM_DATE(1)