Sponsored Content
Full Discussion: date comparison in bash
Top Forums Shell Programming and Scripting date comparison in bash Post 302334620 by rakeshawasthi on Thursday 16th of July 2009 06:06:22 AM
Old 07-16-2009
you seem to have missed 1 field
the correct format should be
Code:
YYYY:MM:DD:HH:mm:ss

or you wanted this only?

---------- Post updated at 03:36 PM ---------- Previous update was at 03:05 PM ----------

Try:
Since you wanted the diff in sec, I have left it in sec.
for the condition when the years are diff, you will have to add the condition.
Code:
#!/bin/bash

timeCalc()
{
   (( _diff = ($1*3600+$2*60+$3) - ($4*3600+$5*60+$6) ))
   return ${_diff}
}

date1=2009:07:15:12:36
date2=2009:07:15:12:16

echo $date1
echo $date2

_date1=$(echo $date1|awk -F":" '{print $1" "$2" "$3}')
_date2=$(echo $date2|awk -F":" '{print $1" "$2" "$3}')
_time1=$(echo $date1|awk -F":" '{$6==""?$6=0:$6=$6;print $4" "$5" "$6}')
_time2=$(echo $date2|awk -F":" '{$6==""?$6=0:$6=$6;print $4" "$5" "$6}')

dateDiff=$(datecalc -a ${_date1} - ${_date2})

if [[ $dateDiff -eq 0 ]]; then
   timeCalc ${_time1} ${_time2}
fi
echo Diff in second is ${_diff} sec.

PS: datecalc you will have to get from unix.com
 

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

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

3. 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

4. Shell Programming and Scripting

Date comparison using ksh

Hi All, i have a text sample below. rootdbs 1 0 01/03/2010.03:11 physdbs 2 0 01/03/2010.03:17 logdbs01 3 0 01/03/2010.03:17 logdbs02 4 0 01/03/2010.03:17 dbs01 5 0 01/03/2010.03:17 dbs02 6 0 01/03/2010.03:17 dbs03 7 0 01/03/2010.03:17 dbs04 ... (4 Replies)
Discussion started by: informix2009
4 Replies

5. 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

6. 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

7. Shell Programming and Scripting

Date comparison script

hi, I have a file named user.cfg under /var/member/ #user.cfg file under /var/member/ login user: root #how are you login pass: admin #where are you M: user1 pass1 #20121008 M: user2 pass2 #20111230 M: user3 pass3 #20091220 M: user4 pass4 #20070210 M: user5 pass5 #20130708 M:... (3 Replies)
Discussion started by: baris35
3 Replies

8. 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

9. 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

10. Shell Programming and Scripting

awk IF date comparison help

Hey everyone, I'm trying to create a script using awk and if that will list all of our aws tapes that have archived date that is past 90 days from todays current date, so that I can pass that to my aws command to remove. The fifth column is the creation date in epoch/seconds, so I'm... (13 Replies)
Discussion started by: beyondmondays
13 Replies
echo(1B)					     SunOS/BSD Compatibility Package Commands						  echo(1B)

NAME
echo - echo arguments to standard output SYNOPSIS
/usr/ucb/echo [-n] [argument] DESCRIPTION
echo writes its arguments, separated by BLANKs and terminated by a NEWLINE, to the standard output. echo is useful for producing diagnostics in command files and for sending known data into a pipe, and for displaying the contents of envi- ronment variables. For example, you can use echo to determine how many subdirectories below the root directory (/) is your current directory, as follows: o echo your current-working-directory's full pathname o pipe the output through tr to translate the path's embedded slash-characters into space-characters o pipe that output through wc -w for a count of the names in your path. example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w" See tr(1) and wc(1) for their functionality. The shells csh(1), ksh(1), and sh(1), each have an echo built-in command, which, by default, will have precedence, and will be invoked if the user calls echo without a full pathname. /usr/ucb/echo and csh's echo() have an -n option, but do not understand back-slashed escape characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other hand, understand the black-slashed escape characters, and ksh's echo() also understands a as the audible bell character; however, these commands do not have an -n option. OPTIONS
-n Do not add the NEWLINE to the output. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWscpu | +-----------------------------+-----------------------------+ SEE ALSO
csh(1), echo(1), ksh(1), sh(1), tr(1), wc(1), attributes(5) NOTES
The -n option is a transition aid for BSD applications, and may not be supported in future releases. SunOS 5.10 3 Aug 1994 echo(1B)
All times are GMT -4. The time now is 01:48 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy