August 1999
Intermediate to advanced
1000 pages
83h 9m
English
/usr/bin/cal [[month] year]
The cal command writes a Gregorian calendar to standard output. If you specify a four-digit year operand, a calendar for that year is written. If you specify no operands, a calendar for the current month is written. You can display a calendar for any month of any year by specifying the month, as a digit from 1 to 12, followed by any four-digit year up to 9999.
An unusual calendar is printed for September 1752. That is the month 11 days were skipped to make up for lack of leap year adjustments. To see this calendar, type:
castle% cal 9 1752
The command cal 83 refers to the year 83, not 1983. The year is always considered to start in January.
| month | Specify ... |
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