1 # Copyright (C) 2008 Andre Noll <maan@systemlinux.org>
3 # Licensed under the GPL v2. For licencing details see COPYING.
6 purpose "advanced disk usage
8 adu creates a database containing disk usage statistics of a given
9 directory. It allows to query that database to quickly retrieve
10 usage patterns of subdirectories and/or files owned by a given user id.
13 #########################
14 section "General options"
15 #########################
17 option "config-file" c
18 #~~~~~~~~~~~~~~~~~~~~~
19 "(default='~/.adurc')"
20 string typestr="filename"
23 Options may be given at the command line or in the
24 configuration file. As usual, if an option is given both at
25 the command line and in the configuration file, the command
26 line option takes precedence.
30 option "database-dir" d
31 #~~~~~~~~~~~~~~~~~~~~~~
32 "directory containing the osl tables"
36 Full path to the directory containing the osl tables. This
37 directory must exist. It must be writable for the user running
38 adu in --create mode and readable in --select mode.
48 Log messages are always written to stderr while normal output
49 goes to stdout. Lower values mean more verbose logging.
54 "files to take into account"
55 string typestr="pattern"
58 Shell wildcard pattern that must match a file in order to be
59 included in the database in --create mode or in the output
60 for --select mode. Only the part of the filename below the
61 base directory is matched against the pattern. The default
62 is to take all files into account. See fnmatch(3) for details.
72 adu may be started in one of two possible modes, each of which
73 corresponds to a different command line option. Exactly one
74 of these options must be given.
79 groupoption "create" C
80 #~~~~~~~~~~~~~~~~~~~~~
81 "Create a new database"
84 Traverse the given directory and track disk user on a per-user
85 basis. Results are stored in N + 1 osl tables where N is
86 the number of uids that own at least one regular file in
90 groupoption "interactive" I
91 #~~~~~~~~~~~~~~~~~~~~~
92 "activate interactive mode"
95 In this mode, adu reads commands from stdin.
98 groupoption "select" S
99 #~~~~~~~~~~~~~~~~~~~~~
100 "query a database previously created with --create"
103 This option prints statistics about matching subdirectories to
104 stdout. The output depends on the other options, see below.
107 ##############################
108 section "Options for --create"
109 ##############################
113 "directory to traverse"
114 string typestr="path"
118 The base directory to be traversed recursively. Must be
119 given if --create mode was selected. A warning message is
120 printed for each subdirectory that could not be read because
121 of insufficient permission. These directories will be ignored
122 when computing statistics.
125 option "one-file-system" x
126 #~~~~~~~~~~~~~~~~~~~~~~~~~
127 "do not dive into other file systems"
131 Skip directories that are on different filesystems from the
132 one that the argument being processed is on.
135 option "hash-table-bits" -
136 #~~~~~~~~~~~~~~~~~~~~~~~~~
137 "specify the size of the uid hash table"
143 Use a hash table of size 2^num for the uid entries. If more than
144 2^num different uids own at least one regular file under base-dir,
145 the command fails. Increase this value if you have more than 1024
146 users. Decreasing the value causes adu to use slightly less memory.
149 ##############################
150 section "Options for --select"
151 ##############################
153 option "select-options" s
154 #~~~~~~~~~~~~~~~~~~~~~~~~~
155 "options for select mode"
156 string typestr="<options>"
160 Try --select-options \"-h\"
165 "select output format for sizes"
166 enum typestr="format"
167 values="h","b","k","m","g","t"
172 Print sizes in the given unit: human-readable, bytes,
173 kilobytes (2^10), megabytes (2^20), gigabytes (2^30), terabytes
174 (2^40). The default is \"h\", i.e. human-readable.
177 option "count-unit" -
178 #~~~~~~~~~~~~~~~~~~~~
179 "select output format for counted values"
180 enum typestr="format"
181 values="h","n","k","m","g","t"
186 Print the number of files/directories in the given unit:
187 human-readable, number, number/10^3, number/10^6, number/10^12,
188 number/10^15. The default is to print numbers in human-readable
192 option "print-base-dir" -
193 #~~~~~~~~~~~~~~~~~~~~~~~~
194 "whether to include the base-dir in the output"
197 If this flag is given, all directories printed are prefixed
198 with the base directory. The default is to print paths relative
202 option "no-headers" -
203 #~~~~~~~~~~~~~~~~~~~~
204 "supress descriptions for listings/tables"
208 This is mostly useful to feed the output of adu to scripts.
211 option "global-list" -
212 #~~~~~~~~~~~~~~~~~~~~~
213 "how to print global directory listings"
215 values="size","file_count","both","none"
220 By default adu prints two global directory listings: The
221 first prints the directory names ordered by the sum of the
222 sizes of the contained files while the second listing prints
223 them sorted by the number of files. This option can be used
224 to print only one or neither of these two listings.
227 option "no-global-summary" -
228 #~~~~~~~~~~~~~~~~~~~~~~~~~~~
229 "do not print the summary line"
235 "how to print per-user directory listings"
237 values="size","file_count","both","none"
242 Similar to the global directory listings mentioned above,
243 adu can print two directory listings per user. This option
244 controls which of the these should be printed.
247 option "no-user-summary" -
248 #~~~~~~~~~~~~~~~~~~~~~~~~~~~
249 "do not print the user summary table"
254 option "user-summary-sort" -
255 #~~~~~~~~~~~~~~~~~~~~~~~~~~~
256 "how to sort the user-summary"
257 enum typestr="col_spec"
258 values="name","uid","dir_count","file_count","size"
263 It is enough to specify the first letter of the column specifier,
264 e.g. \"--user-summary-sort f\" sorts by file count.