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unsort

BSD mandoc
Free Software

NAME

unsort - reorder lines in a file in semirandom ways

SYNOPSIS

[-hvrpncmMsz0l ] [--help ] [--version ] [--random ] [--heuristic ] [--identity ] [--concatenate ] [--merge ] [--merge-random ] [--seed integer ] [--zero-terminated ] [--null ] [--linefeed ] [file ... ]

DESCRIPTION

prints the lines in the input files (or standard input) in semi-random order. Available algorithms are a Mersenne Twister based PRNG and a heuristic algorithm that aims to create a subjective even distribution.

Command line options

-h, --help

Display a concise summary of the available options and argument syntax.

-v, --version

Display version and copyright information.

-r, --random

Use the Mersenne Twister based randomization algorithm.

-p, --heuristic

Use the heuristic "shuffling" algorithm which permutes the lines in such a way that they're spread more or less evenly in the output. This is the default.

-n, --identity

Do not reorder lines in the input. Useful if you just want to merge the files.

-r, --concatenate

Concatenate all input files then apply the shuffling algorithm to the result as a whole.

-m, --merge

Shuffle all input files seperately then merge the result. Equal-sized files will be merged in the order in which they appear on the command line.

-M, --merge-random

Shuffle all input files seperately then merge the result. Equal-sized files will be merged in random order. This is the default.

-s, --seed integer

Use this integer as a seed, instead of random data from the environment.

-z, --zero-terminated, -0, --null

Lines are terminated with a \0 character.

-l, --linefeed

Lines are terminated with a \n character. This is the default.

SEE ALSO

sort(1)