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# 1  
Old 02-15-2011
calendar in unix
how to get the calendar for the year 10000 like we get calendar for say year 2010.

Code:
$ cal 2010
 
                                2010
         Jan                    Feb                    Mar
 S  M Tu  W Th  F  S    S  M Tu  W Th  F  S    S  M Tu  W Th  F  S
                1  2       1  2  3  4  5  6       1  2  3  4  5  6
 3  4  5  6  7  8  9    7  8  9 10 11 12 13    7  8  9 10 11 12 13
10 11 12 13 14 15 16   14 15 16 17 18 19 20   14 15 16 17 18 19 20
17 18 19 20 21 22 23   21 22 23 24 25 26 27   21 22 23 24 25 26 27
24 25 26 27 28 29 30   28                     28 29 30 31
31
         Apr                    May                    Jun
 S  M Tu  W Th  F  S    S  M Tu  W Th  F  S    S  M Tu  W Th  F  S
             1  2  3                      1          1  2  3  4  5
 4  5  6  7  8  9 10    2  3  4  5  6  7  8    6  7  8  9 10 11 12
11 12 13 14 15 16 17    9 10 11 12 13 14 15   13 14 15 16 17 18 19
18 19 20 21 22 23 24   16 17 18 19 20 21 22   20 21 22 23 24 25 26
25 26 27 28 29 30      23 24 25 26 27 28 29   27 28 29 30
                       30 31
         Jul                    Aug                    Sep
 S  M Tu  W Th  F  S    S  M Tu  W Th  F  S    S  M Tu  W Th  F  S
             1  2  3    1  2  3  4  5  6  7             1  2  3  4
 4  5  6  7  8  9 10    8  9 10 11 12 13 14    5  6  7  8  9 10 11
11 12 13 14 15 16 17   15 16 17 18 19 20 21   12 13 14 15 16 17 18
18 19 20 21 22 23 24   22 23 24 25 26 27 28   19 20 21 22 23 24 25
25 26 27 28 29 30 31   29 30 31               26 27 28 29 30
         Oct                    Nov                    Dec
 S  M Tu  W Th  F  S    S  M Tu  W Th  F  S    S  M Tu  W Th  F  S
                1  2       1  2  3  4  5  6             1  2  3  4
 3  4  5  6  7  8  9    7  8  9 10 11 12 13    5  6  7  8  9 10 11
10 11 12 13 14 15 16   14 15 16 17 18 19 20   12 13 14 15 16 17 18
17 18 19 20 21 22 23   21 22 23 24 25 26 27   19 20 21 22 23 24 25
24 25 26 27 28 29 30   28 29 30               26 27 28 29 30 31
31

Last edited by pludi; 02-15-2011 at 07:43 AM.. Reason: code tags, please...
# 2  
Old 02-15-2011
MySQL
have you tried with the following command
Code:
cal 10000

Which OS you are using?
# 3  
Old 02-15-2011
Re: calendar in unix
I am using HP-UX. See the terminal display snapshot.

$ uname -a
HP-UX adroit B.10.20 A 9000/785 2002974975 one-user license
$ cal 10000
Bad argument
SmilieSmilieSmilie

# 4  
Old 02-15-2011
MySQL
On HP-UX the year between 1 and 9999.
Refer the link cal - HP-UX
This User Gave Thanks to ungalnanban For This Post:
hiten.r.chauhan
# 5  
Old 02-15-2011
.... strange ...

The calendar should be the same every 28 years. So to get the calendar of year 10000 you could just :

Code:
cal `expr 10000 - 28`

but i noticed that
Code:
cal 1 1900

and
Code:
cal 1 1928

gives different results....
... whereas for YYYY above 1901 (and of course until 9999), the commands
Code:
cal n YYYY
cal n (YYYY+x*28)

gives the same result
Last edited by ctsgnb; 02-15-2011 at 10:42 AM..
This User Gave Thanks to ctsgnb For This Post:
hiten.r.chauhan
# 6  
Old 02-15-2011
Those're pre-1978 dates, so it could be an epoch fail...
# 7  
Old 02-15-2011
No epoch error, just remember the leap year calculations. 1900 was not a leap year (it's a leap year if the year is divisible by 4, but not 100, except when also divisible by 400), and so the time between January 1900 and January 1928 is missing 1 day (February 29th, 1900 doesn't exist). In March of the respective years the calendars match up again.

As for the original question: the cal utility only has to support dates between September 14, 1752 and December 31, 9999 (both Gregorian calendar):
Quote:
The cal utility shall write a calendar to standard output using the Julian calendar for dates from January 1, 1 through September 2, 1752 and the Gregorian calendar for dates from September 14, 1752 through December 31, 9999 as though the Gregorian calendar had been adopted on September 14, 1752.
Last edited by pludi; 02-15-2011 at 11:57 AM.. Reason: clarification
This User Gave Thanks to pludi For This Post:
ctsgnb
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