Sponsored Content
Full Discussion: Date comparison using ksh
Top Forums Shell Programming and Scripting Date comparison using ksh Post 302384106 by rrstone on Monday 4th of January 2010 03:39:15 AM
Old 01-04-2010
All date comparison should be performed with epoch ( number of seconds since 1970 ) .
Otherwise you need to write very complex code .
So , convert both dates to epoch , subtract from the first number 3*24*3600 and compare them as 2 numbers .
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

date comparison

How can I compare two dates in String format (eg. May 23 2006 05:30:21) in AWK? Thanks (2 Replies)
Discussion started by: dkr123
2 Replies

2. Shell Programming and Scripting

Problem in ksh script ( String comparison )

hi , i am trying to compre two strings if ] or if ] when the length of var1 is small (around 300-400 char ) it works fine but when it is large (around 900-1000 chars) it fails is there any limitations for this type of comparison ??? (3 Replies)
Discussion started by: amarnath
3 Replies

3. AIX

Problem in ksh script ( String comparison )

hi , i am trying to compre two strings if ] or if ] when the length of var1 is small (around 300-400 char ) it works fine but when it is large (around 900-1000 chars) it fails is there any limitations for this type of comparison ??? (1 Reply)
Discussion started by: amarnath
1 Replies

4. Shell Programming and Scripting

Date comparison

Hi all, I've a shell script which runs on Bourne shell. I've to do a date comparison. If the value of the supplied parameter(in format YYYYMMDD)is greater than todays's date(format YYYYMMDD), it should prompt the user that the supplied date is greater than today's date. The script is given... (6 Replies)
Discussion started by: sumesh.abraham
6 Replies

5. Homework & Coursework Questions

Date comparison with 'string date having slashes and time zone' in Bash only

1. The problem statement, all variables and given/known data: I have standard web server log file. It contains different columns (like IP address, request result code, request type etc) including a date column with the format . I have developed a log analysis command line utility that displays... (1 Reply)
Discussion started by: TariqYousaf
1 Replies

6. Solaris

Date comparison

Date comparison Hello all I am writing a scrip that will take action so long as the date with in the file is older than 3 months. The file will contain multiple rows of data. Each row will probably start with the date. My question... What is the exact code that should be used for date... (1 Reply)
Discussion started by: UofU
1 Replies

7. Shell Programming and Scripting

integer comparison in ksh

Hi, I am just trying to compare integer in ksh. can you please tell me what's wrong with this code... or give me suggestions on alternative. sample code: i=0; if ; then echo inside if fi Thanks in advance! (6 Replies)
Discussion started by: nram_krishna@ya
6 Replies

8. UNIX for Dummies Questions & Answers

date comparison

Hi friends, I would like to compare two dates in an IF statement. This is what I am trying, but it doesn't work. date=20120122 minus=6 if ; then ... fi what would the IF clause looks like? Thanks! :) (5 Replies)
Discussion started by: kokoro
5 Replies

9. Shell Programming and Scripting

Date Comparison

Hi Need some function or step to compare the date as given below. Example: Date_1: 25/04/2013 Date_2: 20/07/2012 if Date_1 is greater than Date_2 then do... else do.. fi Need exact unix steps to compare the above condition Use code tags please, see PM. (5 Replies)
Discussion started by: anshaa
5 Replies

10. UNIX for Dummies Questions & Answers

Date comparison

I have below txt file 02.05.2014 10.05.2014 17.09.2014 My requirement is the user enter date field should compare the input file if user enter date as 12.03.2013 it should compare with all date one by one from input file 12.03.2013 -ne 02.05.2014 12.03.2013 -ne 10.05.2014... (3 Replies)
Discussion started by: stew
3 Replies
function::ctime

FUNCTION:(3stap)					      Time utility functions						  FUNCTION:(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) the returned string will be "a long, long time ago...". If the time would be unreasonable far in the future the returned string will be "far far in the future..." (both these strings are also 24 characters wide). 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 May 2013 FUNCTION:(3stap)
All times are GMT -4. The time now is 03:05 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy