If you don't have GNU date, then another alternative is perl if you have that. From your input date, we need to split it up the values and feed them in:-
Code:
#!/bin/ksh
input_date=$1
in_yyyy="${input_date%????}" # Remove last four characters
in_dd="${input_date#??????}" # Remove lead four characters
in_mm="${input_date#????}" # Remove lead four characters
in_mm="${in_mm%??}" # Remove last two characters from previously split value
((temp_mm=$in_mm-1)) # Reduce month by one as epoch counts from 1/1/1970 as zero
# Get time in seconds since epoch
perl -e "use Time::Local; print timelocal(0,0,0,$in_dd,$temp_mm,$in_yyyy), ;" | read in_seconds
# Go back one day in seconds
((out_seconds=$in_seconds-86400))
# Display answer in required format
perl -e 'use POSIX qw(strftime);print scalar(strftime "%Y%m%d", localtime $ARGV[0]), "\n";' $out_seconds
I hope that this meets the brief you have given us. There may be smarter ways to read & split the input date, so I'm open to suggestions.
Obviously some validity checking on the input would be wise else you will get various horrible messages from the perl
I've put it in a script called 254222 (thread number) and tested it as shown:-
Hi,
I would like to find out how can i calculate a date which is 3 months ago. I intend to run a cron job on the 1st of every month, and calculate the month 4 months earlier from the date. For example, if today's date is 1st May 2007, i would like to return 012007( January 2007).
i can get... (1 Reply)
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)
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)
Hello
I would like to help me create a script that:
Given a date, more precisely a year, one month and one day. must calculate the day after
-Input: Year, Month, Day
-Output: Next day the Year-Month-Day
thanks (9 Replies)
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)
I need to get the next day's date of the user entered date
for example:
Enter date (yyyy/mm/yy):
2013/10/08I need to get the next day's date of the user entered date
Desired Output:
2013/10/09Though there are ways to achieve this is Linux or Unix environment (date command) ,I need to... (1 Reply)
How to get Julian date (Three digit) of a given date (Not current date)? I do not have root privilege - so can not use date -d. Assume that we have three variables year, month and date.
Thx (5 Replies)
I Have text like
XXX_20190908.csv.gz need to replace Only date in this format with current date every day
Thanks! (1 Reply)
Discussion started by: yamasani1991
1 Replies
LEARN ABOUT OSX
widget_calendar
widget_calendar(n) widget::calendar Megawidget widget_calendar(n)
__________________________________________________________________________________________________________________________________________________NAME
widget_calendar - widget::calendar Megawidget
SYNOPSIS
package require Tcl 8.4
package require Tk 8.4
package require widget ?3.0?
widget::calendar pathname ?options?
_________________________________________________________________DESCRIPTION
This package provides a calendar megawidget (snidget).
widget::calendar pathname ?options?
WIDGET OPTIONS -command
A script to evaluate when a date was selected.
-dateformat
The format of the date that is returned. Default: %m/%d/%Y.
-firstday
Set first day the week, Either sunday or monday. It defaults to monday.
-font Select the font used in the widget. It defaults to Helvetica 9.
-highlightcolor
Selects the background color for the day that has been selected. Default: #FFCC00
-language
Specify language of the calendar contents. The language is specified by abbreviations of the languge, for example: en - english, de
- german ... It defaults to en.
Supported languages: en, de, fr, it, es, pt, ru, sv, zh, fi
-shadecolor
Selects the color of the parts that have a shaded background. Default: #888888
-showpast
Specify if the past shall be shown. It is a boolean value and defaults to 1.
-textvariable
Specifies the name of a variable whose value is linked to the entry widget's contents. Whenever the variable changes value, the
widget's contents are updated, and vice versa.
WIDGET COMMAND
pathname get ?what?
Returns a part of the selected date or 'all'. The argument what selects the part. Valid values for what are: day, month, year and all.
'all' is the default and returns the complete date in the format given with -dateformat.
DEFAULT BINDINGS
On creation of the calendar widget the following bindings are installed.
o Up - Move to week before current date
o Down - Move to week after current date
o Left - Move to day before current date
o Right - Move to day after current date
o Control-Left - Move to month before current date
o Control-Right - Move to month after current date
o Control-Up - Move to year before current date
o Control-Down - Move to year after current date
EXAMPLE
package require widget::calendar ; # or widget::all
set t [widget::calendar .t]
pack $t -fill x -expand 1
KEYWORDS
megawidget, snit, widget
widget 0.93 widget_calendar(n)
01-02-2015
