I should have looked at Lotus1's Creating random sentences from a dictionary first. This post is essentially the same. Oh, well...
It's the same approach but your solution is much more Perlish. I probably should have posted my solution in this thread. I liked how you did print qq{\u@line.}. I hadn't realized '\u' would only affect the first word since the array becomes a string. Also you can put the period at the end. This will be useful for me.
In the line my @line = map $words[ rand @words ], 0 .. rand 10;I had already figured out that the range operator only returns integers so no need for int() on the rand 10 to feed into the map. But I didn't realize that 0 .. 0 would still give you one element for map so that was a very useful thing for me as well.
(BTW: The Windoze rand is not adequate for dealing with a large body of data like this; it's 15-bit IIRC!)
I found this stackoverflow article that says the value from rand(arg) is
(arg * RAND)
-------------
2**randbits
where RAND is a value from 0 to 2**randbits - 1. 'randbits' is a value that Perl is compiled with and can be found with the command perl -V:randbits. I found for 64 bit ActivePerl on my Windows 7 machine it is 15. On the same machine 32 bit Strawberry perl has randbits = 48. I've been trying to think of a way to test this but haven't arrived at anything.