Rl is a command-line tool that reads lines from an input file or stdin, randomizes the lines and outputs a specified number of lines. it does this with only a single pass over the input while trying to use as little memory as possible.
currently randomize-lines is under development and command-line arguments may change slightly until a 1.0 release is made.
users are recommended to use the shuf command instead which should be available by default. this package may be considered deprecated.