man gaffitter (1): File subsets extractor based on genetic algorithms

SYNOPSIS

gaffitter -t|--target value[unit] [OPTION]... FILE...
gaffitter - -t|--target value[unit] [OPTION]... [FILE]...

DESCRIPTION

gaffitter (Genetic Algorithm File Fitter) is a command-line software written in C++ that extracts --via genetic algorithm-- subsets of an input list of files/directories that best fit the given volume size (target), such as CD, DVD and others.

If gaffitter is executed using the second option listed above, the information about files is fetched from stdin.

The unit suffixes 'k', 'm', 'g' or 't' can be used, where: k = KB/KiB, m = MB/MiB, g = GB/GiB and t = TB/TiB. Default: bytes.

OPTIONS

General options:

-t, --target VALUE[unit] (float)

Set VALUE as target size (mandatory), VALUE > 0.0

--bins, --vols VALUE[unit]

Set VALUE as the maximum number of bins (volumes). [default = "unlimited"]

--si

Use powers of 1000 (not 1024) for target, min, max and output sizes.

--min, --min-size VALUE[unit]

Minimum file size. [default = none]

--max, --max-size VALUE[unit]

Maximum file size. [default = none]

-B, --block-size VALUE

The smallest amount of bytes a file can occupy. [default = 1]

--ss, --show-size

Print the size of each file.

--sb, --show-bytes

Also print the sizes in bytes.

--hi, --hide-items

Don't print selected files.

--hs, --hide-summary

Hide summary line containing sum, difference and number of selected files.

-s, --sort-by-size

Sort the output by size, not by name.

-n, --no-case

Use case-insensitive sorting.

-r, --sort-reverse

Sort the output in reverse order.

--ew, --enclose-with CHAR

Enclose file names with CHAR. [default = none]

--dw, --delimit-with CHAR

Delimit file names (lines) with CHAR. [default = newline]

-z, --null-data

Assume NULL ( ) as the delimiter of input files via stdin (pipe).

-Z, --null

Same as --dw '\0'. See also the -0 and --hs options.

-0, --null-bins

Same as --bs '\0'. See also the -Z and --hs options.

--bs, --bins-separator CHAR

Separate bins (vols) with CHAR. [default = newline]

--version

Print gaffitter version and exit.

-v, --verbose

Verbose.

-h, --help

Print help and exit.

Direct Input options:

--di, --direct-input

Switch to direct input mode, i.e., read directly "size identifier" pairs instead of file names.

--di-b, --di-bytes

Assume input sizes as bytes.

--di-k, --di-kb

Assume input sizes as kibi bytes (KiB). KB if --di-si.

--di-m, --di-mb

Assume input sizes as mebi bytes (MiB). MB if --di-si.

--di-g, --di-gb

Assume input sizes as gibi bytes (GiB). GB if --di-si.

--di-t, --di-tb

Assume input sizes as tebi bytes (TiB). TB if --di-si.

--di-si

Use powers of 1000 (not 1024) for input sizes.

Genetic Algorithm options:

--ga-s, --ga-seed VALUE (integer)

GA initialization seed, VALUE >= 0. Zero means random. [default = 1]

--ga-rs, --ga-random-seed

Use rendom GA seed (same as --ga-seed 0).

--ga-ng, --ga-num-generations VALUE (integer)

Maximum number of generations, VALUE > 0. [default = auto]

--ga-ps, --ga-pop-size VALUE (integer)

Number of individuals, VALUE > tournament_size. [default = auto]

--ga-cp, --ga-cross-prob VALUE (float)

Crossover probability, 0.0 <= VALUE <= 1.0. [default = 0.95]

--ga-mp, --ga-mutation-prob VALUE (float)

Mutation probability (per gene), 0.0 <= VALUE <= 1.0. [default = auto]

--ga-sp, --ga-sel-pressure VALUE (integer)

Selection pressure (tournament size), 2 <= VALUE < pop_size. [default = 2]

--ga-theo, --ga-theoretical [VALUE] (integer)

Stop if the theoretical minimum number of bins is reached. If VALUE is given, it is assumed to be the theoretical minimum number of bins.

Other search methods:

--ap, --approximate

Approximate the solution using Best First search (non-optimal but very fast).

--sp, --split

Just split the input when target size is reached (preserves original order while splitting).

AUTHOR

Written by Douglas A. Augusto <[email protected]>. This manpage has been written by Nacho Barrientos Arias <[email protected]> for the Debian GNU/Linux system (but may be used by others).

BUGS

Report bugs to Douglas A. Augusto <[email protected]>.

COPYRIGHT