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Full Discussion: Cleaner method for this if-then statement?
Top Forums Shell Programming and Scripting Cleaner method for this if-then statement? Post 302646717 by lupin..the..3rd on Friday 25th of May 2012 01:33:15 PM
Old 05-25-2012
Cleaner method for this if-then statement?
I have a script that runs once per month. It performs a certain task ONLY if the month is January, April, July, or October.
Code:
MONTH=`date +%m`
if [ $MONTH -eq 1 ] || [ $MONTH -eq 4 ] || [ $MONTH -eq 7 ] || [ $MONTH -eq 10 ]; then
  do something
else
  do a different thing
fi

Is there a neater way of doing it than my four separate "or" comparisons? That seems like a lot of words just to check if month = 1,4,7,10.

Just curious. This is HP-UX 11.31 if it matters.

Thanks
 

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LEARN ABOUT PHP

jdmonthname

JDMONTHNAME(3)								 1							    JDMONTHNAME(3)

jdmonthname - Returns a month name

SYNOPSIS

       string jdmonthname (int	$julianday, int  $mode)

DESCRIPTION

	Returns  a  string  containing a month name. $mode tells this function which calendar to convert the Julian Day Count to, and what type of
       month names are to be returned.

       Calendar modes

       +-----+--------------------------------------+---+
       |Mode |					    |	|
       |     |					    |	|
       |     |		     Meaning		    |	|
       |     |					    |	|
       |     |		      Values		    |	|
       |     |					    |	|
       +-----+--------------------------------------+---+
       | 0   |					    |	|
       |     |					    |	|
       |     |	     Gregorian - abbreviated	    |	|
       |     |					    |	|
       |     | Jan, Feb, Mar, Apr, May,  Jun,  Jul, |	|
       |     | Aug, Sep, Oct, Nov, Dec		    |	|
       |     |					    |	|
       | 1   |					    |	|
       |     |					    |	|
       |     |		    Gregorian		    |	|
       |     |					    |	|
       |     | January,   February,  March,  April, |	|
       |     | May, June, July, August,  September, |	|
       |     | October, November, December	    |	|
       |     |					    |	|
       | 2   |					    |	|
       |     |					    |	|
       |     |	       Julian - abbreviated	    |	|
       |     |					    |	|
       |     | Jan,  Feb,  Mar, Apr, May, Jun, Jul, |	|
       |     | Aug, Sep, Oct, Nov, Dec		    |	|
       |     |					    |	|
       | 3   |					    |	|
       |     |					    |	|
       |     |		      Julian		    |	|
       |     |					    |	|
       |     | January,  February,  March,   April, |	|
       |     | May,  June, July, August, September, |	|
       |     | October, November, December	    |	|
       |     |					    |	|
       | 4   |					    |	|
       |     |					    |	|
       |     |		      Jewish		    |	|
       |     |					    |	|
       |     | Tishri, Heshvan, Kislev, Tevet, She- |	|
       |     | vat,  AdarI,  AdarII,  Nisan, Iyyar, |	|
       |     | Sivan, Tammuz, Av, Elul		    |	|
       |     |					    |	|
       | 5   |					    |	|
       |     |					    |	|
       |     |		French Republican	    |	|
       |     |					    |	|
       |     | Vendemiaire,   Brumaire,   Frimaire, |	|
       |     | Nivose, Pluviose, Ventose, Germinal, |	|
       |     | Floreal, Prairial, Messidor, Thermi- |	|
       |     | dor, Fructidor, Extra		    |	|
       |     |					    |	|
       +-----+--------------------------------------+---+
PARAMETERS

	      o $jday
		- The Julian Day to operate on

	      o $calendar
		- The calendar to take the month name from

RETURN VALUES

	The month name for the given Julian Day and $calendar.

PHP Documentation Group 													    JDMONTHNAME(3)
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