1FPART(1) BSD General Commands Manual FPART(1)
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4 fpart — Sort and pack files into partitions
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7 fpart [-h] [-V] -n num | -f files | -s size [-i infile] [-a] [-o outfile]
8 [-0] [-e] [-v] [-l] [-b] [-y pattern] [-Y pattern] [-x pattern]
9 [-X pattern] [-z] [-zz] [-zzz] [-d depth] [-D] [-E] [-L] [-w cmd]
10 [-W cmd] [-p num] [-q num] [-r num] [FILE or DIR...]
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13 The fpart utility helps you sort file trees and pack them into bags
14 (called "partitions").
15
17 -h Print help
18 -V Print version
20
22 -n num Create exactly num partitions and try to generate partitions with
23 the same size and number of files. This option cannot be used in
24 conjunction with -f, -s or -L.
25 -f files
27 Create partitions containing at most files files or directories.
28 This option can be used in conjunction with -s and -L.
29 -s size
31 Create partitions with a maximum size of size bytes. With this
32 option, partition 0 may be used to handle files that do not fit
33 in a regular partition, given the provided size limit. This op‐
34 tion can be used in conjunction with -f and -L. You can use a
35 human-friendly unit suffix here (k, m, g, t, p).
36
38 -i infile
39 Read file list from infile. If infile is “-”, then list is read
40 from stdin.
41 -a Input contains arbitrary values; just sort them (do not crawl
43 filesystem). Input must follow the “size(blank)path” scheme.
44 This option is incompatible with crawling-related options.
45
47 -o outfile
48 Output partitions' contents to outfile template. Multiple files
49 will be generated given that template. Each outfile will get
50 partition number as a suffix. If outfile is “-”, then partitions
51 will be printed to stdout, with partition number used as a prefix
52 (so you can grep partitions you are interested in, or do whatever
53 you want).
54 -0 End filenames with a null (’\0’) character when using option -o.
56 -e When adding directories (see DIRECTORY HANDLING ), add an ending
58 “/” to each directory entry.
59 -v Verbose mode (may be specified more than once).
61
63 -l Follow symbolic links (default: do not follow).
64 -b Do not cross filesystem boundaries (default: cross).
66 -y pattern
68 Include files or directories matching pattern only (and discard
69 all other files). This option may be specified several times.
70 Pattern may be a leaf (file or directory) name or a specific
71 path. Shell pattern matching characters (“[”, “]”, “*”, “?”) may
72 be used. Include patterns are ignored when computing size of di‐
73 rectories.
74 -Y pattern
76 Same as -y but case insensitive. This option may not be avail‐
77 able on your platform (at least FreeBSD and GNU/Linux support it,
78 Solaris does not).
79 -x pattern
81 Exclude files or directories matching pattern. This option can
82 be used in conjunction with -y and -Y. In this case, exclusion
83 is performed after. This option may be specified several times.
84 Pattern may be a leaf (file or directory) name or a specific
85 path. Shell pattern matching characters (“[”, “]”, “*”, “?”) may
86 be used. Exclude patterns also apply when computing size of di‐
87 rectories.
88 -X pattern
90 Same as -x but case insensitive. This option may not be avail‐
91 able on your platform (at least FreeBSD and GNU/Linux support it,
92 Solaris does not).
93
95 -z Pack empty directories. By default, fpart will pack files only
96 (except when using the -d or -D options). This option can be
97 useful for tools such as rsync(1) to be able to recreate a full
98 file tree when used with fpart (e.g. using rsync's --files-from
99 option). See the -zz option to also pack un-readable directo‐
100 ries.
101 -zz Treat un-readable directories as empty, causing them to be packed
103 anyway.
104 -zzz Pack all directories (as empty). Useful when 3rd party tools
106 need directory entries to update them (e.g. cpio or tar).
107 -d depth
109 After a certain depth, pack directories instead of files (direc‐
110 tories themselves will be added to partitions, instead of their
111 content). You can force a specific file to be packed anyway by
112 listing it on the command line explicitly.
113 -D Implies -z. Pack leaf directories: if a directory contains files
115 only, it will be packed as a single entry. You can force a spe‐
116 cific file to be packed anyway by listing it on the command line
117 explicitly.
118 -E Implies -D. Pack directories only (work on a per-directory ba‐
120 sis): in that mode, no file will be packed. Instead, each direc‐
121 tory will be packed as a single entry with a size being the sum
122 of all top-level files' sizes. You can force a specific file to
123 be packed anyway by listing it on the command line explicitly.
124
126 -L Live mode (default: disabled). When using this mode, partitions
127 will be generated while crawling filesystem. This option saves
128 time and memory, but does not give partition 0 a special meaning
129 (see option -s ). As a consequence, it can generate partitions
130 larger than the size specified with option -s. This option can
131 be used in conjunction with options -f and -s, but not with op‐
132 tion -n.
133 -w cmd When using live mode, execute cmd when starting a new partition
135 (before having opened next output file, if any). cmd is run in a
136 specific environment that provides several variables describing
137 the state of the program: FPART_HOOKTYPE ("pre-part" or "post-
138 part"), FPART_PARTFILENAME (current partition's output file
139 name), FPART_PARTNUMBER (current partition number),
140 FPART_PARTSIZE (current partition size), FPART_PARTNUMFILES (num‐
141 ber of files in current partition), FPART_PID (PID of fpart).
142 Note that variables may or may not be defined, depending of re‐
143 quested options and current partition's state when the hook is
144 triggered. Also, note that hooks are executed in a synchronous
145 way while crawling filesystem, so 1) avoid executing commands
146 that take a long time to return as it slows down filesystem
147 crawling and 2) do not presume cwd (PWD) is the one fpart has
148 been started in, as it is regularly changed to speed up crawling
149 (use absolute paths within hooks).
150 -W cmd Same as -w, but executes cmd when finishing a partition (after
152 having closed last output file, if any).
153
155 -p num Preload each partition with num bytes. You can use a human-
156 friendly unit suffix here (k, m, g, t, p).
157 -q num Overload each file size with num bytes. You can use a human-
159 friendly unit suffix here (k, m, g, t, p).
160 -r num Round each file size up to next num bytes multiple. This option
162 can be used in conjunction with overloading, which is done *be‐
163 fore* rounding. You can use a human-friendly unit suffix here
164 (k, m, g, t, p).
165
167 Here are some examples:
168 fpart -n 3 -o var-parts /var
170 Produce 3 partitions, with (hopefully) the same size and number
171 of files. Three files: var-parts.0, var-parts.1 and var-parts.2
172 are generated as output.
173 fpart -s 4724464025 -o music-parts /path/to/music ./*.mp3
175 Produce partitions of 4.4 GB, containing music files from
176 /path/to/music as well as MP3 files from current directory; with
177 such a partition size, each partition content will be ready to be
178 burnt to a DVD. Files music-parts.0 to music-parts.n, are gener‐
179 ated as output.
180 find /usr ! -type d | fpart -f 10000 -i - /home | grep '^0:'
182 Produce partitions containing 10000 files each by examining /usr
183 first and then /home and display only partition 0 on stdout.
184 du * | fpart -n 2 -a
186 Produce two partitions by using du(1) output. Fpart will not ex‐
187 amine the file system but instead use arbitrary values printed by
188 du(1) and sort them.
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191 du(1), find(1), fpsync(1), grep(1), rsync(1)
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194 Fpart has been written by Ganaël LAPLANCHE and is available under the BSD
195 license on http://contribs.martymac.org
196
198 No bug known (yet).
199BSD November 18, 2011 BSD