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Top Forums Shell Programming and Scripting Getting a specific date from cal output with AWK Post 302380910 by Casey on Wednesday 16th of December 2009 03:41:53 PM
Old 12-16-2009
Getting a specific date from cal output with AWK

Hi guys!

I'll make this short... Is there any good way to get the day number that first matches the Monday column from the cal command output with awk (or any other text manipulator commands) ?

I'm sorry if my question wasn't clear at all.

For example...

One cal output would be

Code:
$ cal
       December 2009      
Sun Mon Tue Wed Thu Fri Sat  
         1   2   3   4   5
 6   7   8   9  10  11  12
13  14  15  16  17  18  19
20  21  22  23  24  25  26
27  28  29  30  31

Now, what I really need to get is the number of the first Monday in the month (I might also need, for example, the 3rd number of the Friday column, or any other number related to day that I need from that output).... In this case that would be the 7. I cannot think of anything since I have to consider that Monday might also be 1 or 2 in the 3rd line.....

Any idea?? I need this in order to setup a backup script for crontab, since as you know crontab is a little bit dumb.... but that doesn't matter.


Any help will be appreciated, thank you all in advance Smilie


P.S.: Sorry for my bad English...
 

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INTLCALENDAR.GETMINIMALDAYSINFIRSTWEEK(3)				 1				 INTLCALENDAR.GETMINIMALDAYSINFIRSTWEEK(3)

IntlCalendar::getMinimalDaysInFirstWeek - Get minimal number of days the first week in a year or month can have

	Object oriented style

SYNOPSIS
public int IntlCalendar::getMinimalDaysInFirstWeek (void ) DESCRIPTION
Procedural style int intlcal_get_minimal_days_in_first_week (IntlCalendar $cal) Returns the smallest number of days the first week of a year or month must have in the new year or month. For instance, in the Gregorian calendar, if this value is 1, then the first week of the year will necessarily include January 1st, while if this value is 7, then the week with January 1st will be the first week of the year only if the day of the week for January 1st matches the day of the week returned by IntlCalendar.getFirstDayOfWeek(3); otherwise it will be the previous years last week. PARAMETERS
o $cal - The IntlCalendar resource. RETURN VALUES
An int representing a number of days or FALSE on failure. EXAMPLES
Example #1 IntlCalendar.getMinimalDaysInFirstWeek(3) <?php ini_set('date.timezone', 'UTC'); ini_set('intl.default_locale', 'en_US'); $cal = new IntlGregorianCalendar(2013, 0 /* January */, 2); var_dump(IntlDateFormatter::formatObject($cal, 'cccc')); // Wednesday var_dump($cal->getMinimalDaysInFirstWeek(), // 1 $cal->getFirstDayofWeek()); // 1 (Sunday) // Week 1 of 2013 var_dump(IntlDateFormatter::formatObject($cal, "'Week 'w' of 'Y")); $cal->setMinimalDaysInFirstWeek(4); // Still Week 1 of 2013 (1st week has 5 days in the new year) var_dump(IntlDateFormatter::formatObject($cal, "'Week 'w' of 'Y")); $cal->setMinimalDaysInFirstWeek(6); // Week 53 of 2012 var_dump(IntlDateFormatter::formatObject($cal, "'Week 'w' of 'Y")); The above example will output: string(9) "Wednesday" int(1) int(1) string(14) "Week 1 of 2013" string(14) "Week 1 of 2013" string(15) "Week 53 of 2012" PHP Documentation Group INTLCALENDAR.GETMINIMALDAYSINFIRSTWEEK(3)
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