Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Script to get previous date for the given input date..
Top Forums Shell Programming and Scripting Script to get previous date for the given input date.. Post 302927146 by RavinderSingh13 on Monday 1st of December 2014 07:50:11 AM
Old 12-01-2014
Hello hemant,

Following may help you in same.

Here is the script.
Code:
cat days_ago.ksh
date -d"$1 days ago"

Run the script as follows.
Code:
./days_ago.ksh 20 ##### By giving number of days ago you need as arguments

Output will be as follows.
Code:
Tue Nov 11 07:48:52 EST 2014

Where current date is 1st Dec 2014


EDIT: To get exactly in YYYY-MM-DD format as follows code may help.
Code:
cat days_ago.ksh
date -d"$1 days ago" +%Y-%m-%d

Output will be as follows.
Code:
./days_ago.ksh 20
2014-11-11


Thanks,
R. Singh
Last edited by RavinderSingh13; 12-01-2014 at 09:17 AM.. Reason: Added a solution to get date in format YYYY-MM-DD
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to find Previous date and Coming date

Hi All, How to find a date which is 7 days from the current date as well as how to find a date which is 7 days before this current date. Urgently i need help. Thanks in Advance Regards Arunava (2 Replies)
Discussion started by: arunava_maity
2 Replies

2. Shell Programming and Scripting

Specify a previous date as start date in shell script

Hi, I am trying to modify a script which accepts date in format dd/mm/yy. I am trying to modify the script so that it retrieves the date that was 15 days earlier from today as start date. Eg.if today is 05/09/2006, the script should retrieve 21/08/2006 as start date. Is there any script/code to... (2 Replies)
Discussion started by: ritzwan0
2 Replies

3. Shell Programming and Scripting

want to get previous date from date command in ksh

I want to get previous date from date command. I am using ksh shell. Exmp: today is 2008.09.04 I want the result : 2008.09.03 Please help. Thanks in advance. (4 Replies)
Discussion started by: rinku
4 Replies

4. Shell Programming and Scripting

write script for previous date

Hi all, I need to write a unix shell script that will return the previous date of date entered and i have to consider leap year also. For eg:- if i entered 2009-08-18 then the script should return 2009-08-17 can you please help me to write this... (12 Replies)
Discussion started by: prasson_ibm
12 Replies

5. Shell Programming and Scripting

Pass the first date and last date of previous month

Hi All, I need to run a job every month at the beginning of the month which is scheduled through autosys, lets say on 03/01/2010. I need to pass the last month's i.e February's first_date = 02/01/2010 and last_date = 02/28/2010 as variables to a stored procedure. Can somebody please pass... (2 Replies)
Discussion started by: vigdmab
2 Replies

6. Shell Programming and Scripting

Script to check file with previous date

Hi all,I need your help to create the script.I need a script to check the ZIP file at network location with yesterday date name. ZIP file creation date is current date, but name of the zip file is previous date. for example file name "20110216.zip" created today 201102017.I just want to return the... (1 Reply)
Discussion started by: deepaksingla
1 Replies

7. Shell Programming and Scripting

finding the previous day date and creating a file with date

Hi guys, I had a scenario... 1. I had to get the previous days date in yyyymmdd format 2. i had to create a file with Date inthe format yyyymmdd.txt format both are different thanks guys in advance.. (4 Replies)
Discussion started by: apple2685
4 Replies

8. Shell Programming and Scripting

Help with getting last date of previous month and first date of previous 4th month from current date

I have requirment to get last date of previous month and the first date of previous 4th month: Example: Current date: 20130320 (yyyymmdd) Last date of previous month: 20130228 (yyyymmdd) First date of previous 4th month: 20121101 (yyyymmdd) In my shell --date, -d, -v switches are not... (3 Replies)
Discussion started by: machomaddy
3 Replies

9. Shell Programming and Scripting

Date - incorrect results for previous date

Hello: I am bit puzzled with what I could be doing wrong and any help is appreciated. I have a date in YYYMMDD format and I need to find the previous date. Based on the input on this forum, I have come up with the following. It seems to work for all except the following. Here I am passing date... (3 Replies)
Discussion started by: wincrazy
3 Replies

10. Shell Programming and Scripting

Not able to fetch previous month first date and last date

I am not able to fetch first date and last date previous month date -d -1month +%Y-%m-%d date -d -1month +%Y-%m-%d I need two format dd-mm-yyy previous month 01-03-2016 previous month 31-03-2016 and also only date 1 to 31 Aprriciate your replay (4 Replies)
Discussion started by: jagu
4 Replies

LEARN ABOUT DEBIAN

nqs2pbs

nqs2pbs(1B)								PBS							       nqs2pbs(1B)

NAME

       nqs2pbs - convert NQS job scripts to PBS

SYNOPSIS

       nqs2pbs nqs_script [pbs_script]

DESCRIPTION

       This  utility  converts	a  existing NQS job script to work with PBS and NQS.  The existing script is copied and PBS directives, #PBS , are
       inserted prior to each NQS directive #QSUB or #@$ , in the original script.

       Certain NQS date specification and options are not supported by PBS.  A warning message will be displayed indicating the  problem  and  the
       line of the script on which it occurred.

       If  any	unrecognizable	NQS  directives  are encountered, an error message is displayed.  The new PBS script will be deleted if any errors
       occur.

OPERANDS

       nqs_script
	      Specifies the file name of the NQS script to convert.  This file is not changed.

       pbs_script
	      If specified, it is the name of the new PBS script.   If not specified, the new file name is nqs_script.new .

NOTES

       Converting NQS date specifications to the PBS form may result in a warning message and an incompleted converted date.  PBS does not support
       date  specifications  of  "today",  "tomorrow", or the name of the days of the week such as "Monday".  If any of these are encountered in a
       script, the PBS specification will contain only the time portion of the NQS specification, i.e. #PBS -a hhmm[.ss].   It is  suggested  that
       you specify the execution time on the qsub command line rather than in the script.

       Note that PBS will interpret a time specification without a date in the following way:

       -  If the time specified has not yet been reached, the job will become eligible to run at that time today.

       -  If the specified time has already passed when the job is submitted, the job will become eligible to run at that time tomorrow.

       PBS does not support time zone identifiers.  All times are taken as local time.

SEE ALSO

       qsub(1B)

Local																       nqs2pbs(1B)
All times are GMT -4. The time now is 11:00 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy