lassie% ls cal-funcs.c lib/ mycal6.txt sep/ calendar.h mycal6.c mycal7.c thanks.c lassie% lassie% cc201 -c cal-funcs.c lassie% lassie% ls cal-funcs.c calendar.h mycal6.c mycal7.c thanks.c cal-funcs.o lib/ mycal6.txt sep/ lassie% lassie% cc201 mycal7.c cal-funcs.o lassie% lassie% a.out year =? 1994 January 1994 S M Tu W Th F S 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 February 1994 S M Tu W Th F S 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 March 1994 S M Tu W Th F S 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 . . .