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NAME

     fpart — Sort and pack files into partitions.

SYNOPSIS

     fpart [-h] [-V] -n num | -f files | -s size [-i infile] [-a] [-o outfile] [-e] [-v] [-l] [-b] [-y pattern]
           [-Y pattern] [-x pattern] [-X pattern] [-z] [-Z] [-d depth] [-D] [-L] [-w cmd] [-W cmd] [-p num]
           [-q num] [-r num] [FILE or DIR...]

DESCRIPTION

     The fpart utility helps you sort file trees and pack them into bags (called "partitions").

GENERAL OPTIONS

     -h      Print help

     -V      Print version

PARTITION CONTROL

     -n num  Create exactly num partitions and try to generate partitions with the same size and number of
             files. This option cannot be used in conjunction with -f, -s or -L.

     -f files
             Create partitions containing at most files files. This option can be used in conjunction with -s
             and -L.

     -s size
             Create partitions with a maximum size of size bytes. With this option, partition 0 may be used to
             handle files that do not fit in a regular partition, given the provided size limit. This option can
             be used in conjunction with -f and -L.

INPUT CONTROL

     -i infile
             Read file list from infile.  If infile is “-”, then list is read from stdin.

     -a      Input contains arbitrary values; just sort them (do not crawl filesystem).  Input must follow the
             “size(blank)path” scheme. This option is incompatible with crawling-related options.

OUTPUT CONTROL

     -o outfile
             Output partitions' contents to outfile template. Multiple files will be generated given that
             template. Each outfile will get partition number as a suffix. If outfile is “-”, then partitions
             will be printed to stdout, with partition number used as a prefix (so you can grep partitions you
             are interested in, or do whatever you want).

     -e      When adding directories (see DIRECTORY HANDLING ), add an ending “/” to each directory entry.

     -v      Verbose mode (may be specified more than once).

FILESYSTEM CRAWLING CONTROL

     -l      Follow symbolic links (default: do not follow).

     -b      Do not cross filesystem boundaries (default: cross).

     -y pattern
             Include files or directories matching pattern only (and discard all other files). This option may
             be specified several times.  It does not apply when computing size of directories to be added as
             leaf entries (the computed size will then include every file within directory).

     -Y pattern
             Same as -y but case insensitive. This option may not be available on your platform (at least
             FreeBSD and GNU/Linux support it, Solaris does not).

     -x pattern
             Exclude files or directories matching pattern.  This option can be used in conjunction with -y and
             -Y.  In this case, exclusion is performed after. This option may be specified several times. It
             does not apply when computing size of directories to be added as leaf entries (the computed size
             will then include every file within directory).

     -X pattern
             Same as -x but case insensitive. This option may not be available on your platform (at least
             FreeBSD and GNU/Linux support it, Solaris does not).

DIRECTORY HANDLING

     -z      Pack empty directories. By default, fpart will pack files only (except when using the -d or -D
             options). This option can be useful for tools such as rsync(1) to be able to recreate a full file
             tree when used with fpart (e.g. using rsync's --files-from option). See the -Z option to also pack
             un-readable directories.

     -Z      Implies -z.  Treat un-readable directories as empty, causing them to be packed anyway.

     -d depth
             After a certain depth, pack directories instead of files (directories themselves will be added to
             partitions, instead of their content).

     -D      Implies -z.  Pack leaf directories: if a directory contains files only, it will be packed as a
             single entry.

LIVE MODE

     -L      Live mode (default: disabled). When using this mode, partitions will be generated while crawling
             filesystem. This option saves time and memory, but does not give partition 0 a special meaning (see
             option -s ). As a consequence, it can generate partitions larger than the size specified with
             option -s.  This option can be used in conjunction with options -f and -s, but not with option -n.

     -w cmd  When using live mode, execute cmd when starting a new partition (before having opened next output
             file, if any).  cmd is run in a specific environment that provides several variables describing the
             state of the program: FPART_HOOKTYPE ("pre-part" or "post-part"), FPART_PARTFILENAME (current
             partition's output file name), FPART_PARTNUMBER (current partition number), FPART_PARTSIZE (current
             partition size), FPART_PARTNUMFILES (number of files in current partition), FPART_PID (PID of
             fpart). Note that variables may or may not be defined, depending of requested options and current
             partition's state when the hook is triggered.  Also, note that hooks are executed in a synchronous
             way while crawling filesystem, so 1) avoid executing commands that take a long time to return as it
             slows down filesystem crawling and 2) do not presume cwd (PWD) is the one fpart has been started
             in, as it is regularly changed to speed up crawling (use abolute paths within hooks).

     -W cmd  Same as -w, but executes cmd when finishing a partition (after having closed last output file, if
             any).

SIZE HANDLING

     -p num  Preload each partition with num bytes.

     -q num  Overload each file size with num bytes.

     -r num  Round each file size up to next num bytes multiple. This option can be used in conjunction with
             overloading, which is done *before* rounding.

EXAMPLES

     Here are some examples:

     fpart -n 3 -o var-parts /var
             Produce 3 partitions, with (hopefully) the same size and number of files.  Three files: var-
             parts.0, var-parts.1 and var-parts.2 are generated as output.

     fpart -s 4724464025 -o music-parts /path/to/music ./*.mp3
             Produce partitions of 4.4 GB, containing music files from /path/to/music as well as MP3 files from
             current directory; with such a partition size, each partition content will be ready to be burnt to
             a DVD. Files music-parts.0 to music-parts.n, are generated as output.

     find /usr ! -type d | fpart -f 10000 -i - /home | grep '^0:'
             Produce partitions containing 10000 files each by examining /usr first and then /home and display
             only partition 0 on stdout.

     du * | fpart -n 2 -a
             Produce two partitions by using du(1) output. Fpart will not examine the file system but instead
             use arbitrary values printed by du(1) and sort them.

SEE ALSO

     du(1), find(1), fpsync(1), grep(1), rsync(1)

AUTHOR, AVAILABILITY

     Fpart has been written by Ganaël LAPLANCHE and is available under the BSD license on
     http://contribs.martymac.org

BUGS

     No bug known (yet).