Sponsored Content
Top Forums Shell Programming and Scripting Calculate the calendar date since Jan 1, 2000 Post 302614451 by nikhil jain on Wednesday 28th of March 2012 01:47:09 PM
Old 03-28-2012
Hi Chihung

My doubt is, what if the starting date is 01-01-0001.

what is the epoch time for this??
can u plz share what is the logic behind the conversion????
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Calendar date to Julian and Back

I need Unix, ksh scripts that will convert dates - Gregorian to Julian and Julian to Gregorian. Input for converting Gregorian to Julian would be in the form of CCYYMMDD with the output being CCYYDDD. Input for converting Julian to Gregorian would be CCYYDDD with the output being CCYYMMDD. ... (4 Replies)
Discussion started by: BCarlson
4 Replies

2. Shell Programming and Scripting

Derive date from a calendar

I'm using AutoSys as scheduler for my application. I maintain a calendar in AutoSys which specifies when a job should run. A unix shell scripts runs on the days spceified by calendar and processes incoming files. These incoming files contain dates embedded in the filenames. My job needs to... (2 Replies)
Discussion started by: autouser123
2 Replies

3. Shell Programming and Scripting

calculate the date of next satureday of current date.

I want to calculate the date of next satureday of current date using shell script. Suppose, today is 27-feb-08 I want to get the date of next satureday, which means 01-mar-08, in the formate '' YYMMDD ". I do this in ksh.. Please tell me any type of command which help me out. Thanks in... (3 Replies)
Discussion started by: rinku
3 Replies

4. Shell Programming and Scripting

Julian date to Calendar date conversion

Hi all, I require to convert julian date to normal calander date in unix for eg julian date=122 now i want corresponding calander date ---------------------------------------- gr8 if give very small command/script and please explain the steps as well(imp) Thanks ... (3 Replies)
Discussion started by: RahulJoshi
3 Replies

5. Shell Programming and Scripting

KSH script Not working (calculate days since 1/1/2000 given day 4444)

I am unable to get this KSH script to work. Can someone help. I've been told this should work with KSH93. Which I think I have on Solaris 10. If I do a grep -i version /usr/dt/bin/dtksh I get @(#)Version M-12/28/93d @(#)Version 12/28/93 @(#)Version M-12/28/93 This is correct for... (5 Replies)
Discussion started by: thibodc
5 Replies

6. Shell Programming and Scripting

How do i compare two dates with format Jan 01, 2012 and Jan 00 2012

I need to be able to compare dates in the format of Jan 10, 2012 and Jan 10 2012. (Notice one has a comma). Then I need to find the date that is 7 days before those dates if they are equal. How can I do this in Bash. Thank ahead (4 Replies)
Discussion started by: ojthejuice
4 Replies

7. Shell Programming and Scripting

perl one-liner to get yesterday's date in format dd-MMM-yy (i.e. 01-JAN-12)

I have the following perl one-liner to get yesterday's date, but I would like it in the form of dd-MMM-yy (for example: 01-JAN-12). Can someone alter the below code so I get the format I want? Also, could someone also give me a line for dd-Mmm-yy (for example 01-Jan-12)? Code: YEST=`perl -w... (3 Replies)
Discussion started by: thibodc
3 Replies

8. UNIX for Dummies Questions & Answers

Date format from Jan 01 2015 11:00:00 PM to 01/01/2015 23.00.00

I need to change Date and time stamp format from Jan 01 2015 11:00:00 PM to 01/01/2015 23.00.00 Existing Format : Mon DD YYYY hh:mi:ss AM/PM (Jan 01 2015 11:00:00 PM) Expected Format: MM/DD/YYYY hh.mi.ss 24 hours (01/01/2015 23.00.00) I need to update enitire file where... (3 Replies)
Discussion started by: esivaprasad
3 Replies

9. Linux

How to calculate the quarter end date according to the current date in shell script?

Hi, My question is how to calculate the quarter end date according to the current date in shell script? (2 Replies)
Discussion started by: Divya_1234
2 Replies
FUNCTION::CTIME(3stap)					      Time utility functions					    FUNCTION::CTIME(3stap)

NAME
function::ctime - Convert seconds since epoch into human readable date/time string SYNOPSIS
ctime:string(epochsecs:long) ARGUMENTS
epochsecs Number of seconds since epoch (as returned by gettimeofday_s) DESCRIPTION
Takes an argument of seconds since the epoch as returned by gettimeofday_s. Returns a string of the form "Wed Jun 30 21:49:08 1993" The string will always be exactly 24 characters. If the time would be unreasonable far in the past (before what can be represented with a 32 bit offset in seconds from the epoch) an error will occur (which can be avoided with try/catch). If the time would be unreasonable far in the future, an error will also occur. Note that the epoch (zero) corresponds to "Thu Jan 1 00:00:00 1970" The earliest full date given by ctime, corresponding to epochsecs -2147483648 is "Fri Dec 13 20:45:52 1901". The latest full date given by ctime, corresponding to epochsecs 2147483647 is "Tue Jan 19 03:14:07 2038". The abbreviations for the days of the week are 'Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', and 'Sat'. The abbreviations for the months are 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', and 'Dec'. Note that the real C library ctime function puts a newline (' ') character at the end of the string that this function does not. Also note that since the kernel has no concept of timezones, the returned time is always in GMT. SystemTap Tapset Reference June 2014 FUNCTION::CTIME(3stap)
All times are GMT -4. The time now is 12:27 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy