RAIN(6) BSD Reference Manual RAIN(6)
rain - animated raindrops display
rain [-d delay]
rain is modeled after the VAX/VMS program of the same name. To obtain the proper effect, either the terminal must be set for 9600 baud or the -d option must be used to specify a delay, in milliseconds, between each up- date. A reasonable delay is 120; the default is 0. As with any curses(3) program, the TERM environment variable must be set (and exported) to the type of the terminal being used.
Eric P. Scott MirOS BSD #10-current May 31, 1993 1
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