using the script/command cal3

This is a cute little program which display a 3-month calendar, with today's date highlighted.

For more general calendars use the UNIX command ``cal''.

Sample of usage:

newton>  cal3

today: 2001 Feb 15

   January 2001            February 2001           March 2001
 S  M Tu  W Th  F  S     S  M Tu  W Th  F  S     S  M Tu  W Th  F  S
    1  2  3  4  5  6                 1  2  3                 1  2  3
 7  8  9 10 11 12 13     4  5  6  7  8  9 10     4  5  6  7  8  9 10
14 15 16 17 18 19 20    11 12 13 14 15 16 17    11 12 13 14 15 16 17
21 22 23 24 25 26 27    18 19 20 21 22 23 24    18 19 20 21 22 23 24
28 29 30 31             25 26 27 28             25 26 27 28 29 30 31