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Full Discussion: Changing date using bash script
Top Forums Shell Programming and Scripting Changing date using bash script Post 303023048 by novilatte on Tuesday 11th of September 2018 07:33:53 AM
Old 09-11-2018
Changing date using bash script
I am trying to change dates in a bash script.

I have a start time and an endtime and want to increment the times. Basically
the month and day have to be incremented in a loop to create two strings, stm and
etm defining the start and end times.

Code:
stm="2014-05-13T00:00:00"
etm="2014-05-14T00:00:00"

------ Post updated at 06:33 AM ------

I have started doing this bash details for constructing the start and end strings.

Code:
# Covering months May to December 
for m in {5..12}; do
  mth=$((mth+1))
  echo "mth: $mth"
  for dy in {1..30}; do
    day=$((day+1))
    echo "day: $day"
  done
  echo ""
done

# Covering months Jan to April 
for m in {1..4}; do
  mth=$((mth+1))
  echo "mth: $mth"
  for dy in {1..30}; do
    day=$((day+1))
    echo "day: $day"
  done
  echo ""
done

 

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LEARN ABOUT X11R4

holidays

holidays(4)							   File Formats 						       holidays(4)

NAME

       holidays - prime/nonprime table for the accounting system

SYNOPSIS

       /etc/acct/holidays

DESCRIPTION

       The   /etc/acct/holidays file describes which hours are considered prime time and which days  are holidays.  Holidays and weekends are con-
       sidered non-prime time hours.  /etc/acct/holidays is used by the accounting system.

       All lines beginning with an "*" are comments.

       The  /etc/acct/holidays file consists of two sections.  The first non-comment line defines the current year and the start time of prime and
       non-prime time hours, in the form:

       current_year	 prime_start	  non_prime_start

       The remaining non-comment lines define the holidays in the  form:

       month/day     company_holiday

       Of these two fields, only the  month/day is actually used by  the accounting system programs.

       The  /etc/acct/holidays file must be updated each year.

EXAMPLES

       Example 1: Example of the /etc/acct/holidays file.

       The following is an example of the /etc/acct/holidays file:

       * Prime/Nonprime Table for the accounting system
       *
       * Curr	  Prime     Non-Prime
       * Year	  Start     Start
       *
	 1991	  0830	   1800
       *
       * only the first column (month/day) is significant.
       *
       * month/day    Company Holiday
       *
	 1/1	      New Years Day
	 5/30	      Memorial Day
	 7/4	      Indep. Day
	 9/5	      Labor Day
	 11/24	      Thanksgiving Day
	 11/25	      day after Thanksgiving
	 12/25	      Christmas
	 12/26	      day after Christmas

SEE ALSO

       acct(1M)

SunOS 5.10							    28 Mar 1991 						       holidays(4)
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