Random character generation - with random output!

This is what crunch can generate: [user@localhost ~] crunch 3 3 ab Crunch will now generate the following amount of data: 32 bytes 0 MB 0 GB 0 TB 0 PB Crunch will now generate the following number of lines: 8 aaa aab aba abb baa bab bba bbb [user@localhost ~] **But are there any solutions** that is the same as crunch, the only difference is that is randomly outputs the lines? [user@localhost ~] SOMEMAGIC 3 3 ab bba bab abb aaa bbb aab baa aba [user@localhost ~] using a "sort -R" like method isn't good! Because the solution needs to be "on the fly"