Date Question

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# 1  
Old 10-21-2007
Date Question

How could I get a date's day of the week (ie Sunday) without using the date -d command?

So if a date was specified, it would give me the day of the week.

The date -d command looks something like this
date -d $inputdate | cut -c 1-3

the only problem with that statement is that it won't work for dates prior to the 21st century.
# 2  
Old 10-21-2007
Convert the date to a Julian date. The day of the week can be obtained from the remainder of the division of the Julian date by 7. Zero (0) represents Monday.
# 3  
Old 10-21-2007
Would that work for leap years as well?
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