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Full Discussion: last day of the month
Top Forums Shell Programming and Scripting last day of the month Post 81651 by 98_1LE on Tuesday 23rd of August 2005 12:26:03 AM
Old 08-23-2005
I am sure there are better ways to do this:
Code:
cal `date '+%m'` `date '+%Y'` | grep . | fmt -1 | tail -1

Or to get the last day of every month for a year:
Code:
#!/bin/bash

if [ "$1" = "" ]
   then  YEAR=`date '+%Y'`
   else YEAR=$1
fi

MONTH=1
until [ $MONTH -gt 12 ]
      do LASTDAY=`cal $MONTH $YEAR | grep . | fmt -1 | tail -1`
         echo "$MONTH  $LASTDAY"
         let MONTH=$MONTH+1
done

The results look like:
> ./ty
The last day of the month for 2005 is:
1 31
2 28
3 31
4 30
5 31
6 30
7 31
8 31
9 30
10 31
11 30
12 31
> ./ty 2004
The last day of the month for 2004 is:
1 31
2 29
3 31
4 30
5 31
6 30
7 31
8 31
9 30
10 31
11 30
12 31
 

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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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