Annotation of src/usr.bin/mandoc/apropos.1, Revision 1.13
1.13 ! schwarze 1: .\" $Id: apropos.1,v 1.12 2011/12/25 20:15:54 schwarze Exp $
1.1 schwarze 2: .\"
3: .\" Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4: .\"
5: .\" Permission to use, copy, modify, and distribute this software for any
6: .\" purpose with or without fee is hereby granted, provided that the above
7: .\" copyright notice and this permission notice appear in all copies.
8: .\"
9: .\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10: .\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11: .\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12: .\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13: .\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14: .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15: .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16: .\"
1.12 schwarze 17: .Dd $Mdocdate: December 25 2011 $
1.1 schwarze 18: .Dt APROPOS 1
19: .Os
20: .Sh NAME
21: .Nm apropos
1.6 schwarze 22: .Nd search manual page databases
1.1 schwarze 23: .Sh SYNOPSIS
24: .Nm
1.9 schwarze 25: .Op Fl C Ar file
1.13 ! schwarze 26: .Op Fl M Ar path
! 27: .Op Fl m Ar path
1.3 schwarze 28: .Op Fl S Ar arch
29: .Op Fl s Ar section
1.9 schwarze 30: .Ar expression ...
1.1 schwarze 31: .Sh DESCRIPTION
32: The
33: .Nm
1.6 schwarze 34: utility queries manual page databases generated by
1.5 schwarze 35: .Xr mandocdb 8 ,
1.4 schwarze 36: evaluating on
37: .Ar expression
1.6 schwarze 38: for each file in each database.
1.12 schwarze 39: .Pp
40: By default,
41: .Nm
42: searches for
43: .Xr mandocdb 8
44: databases in the default paths stipulated by
45: .Xr man 1 ,
46: parses terms as case-sensitive regular expressions
47: .Pq the Li \&~ operator
48: over manual names and descriptions
49: .Pq the Li \&Nm No and Li \&Nd No macro keys .
50: Multiple terms imply pairwise
51: .Fl o .
52: .Pp
1.1 schwarze 53: Its arguments are as follows:
54: .Bl -tag -width Ds
1.9 schwarze 55: .It Fl C Ar file
56: Specify an alternative configuration
57: .Ar file
58: in
59: .Xr man.conf 5
60: format.
1.13 ! schwarze 61: .It Fl M Ar path
1.6 schwarze 62: Use the colon-separated path instead of the default list of paths
63: searched for
64: .Xr mandocdb 8
65: databases.
66: Invalid paths, or paths without manual databases, are ignored.
1.13 ! schwarze 67: .It Fl m Ar path
1.6 schwarze 68: Prepend the colon-separated paths to the list of paths searched
69: for
70: .Xr mandocdb 8
71: databases.
72: Invalid paths, or paths without manual databases, are ignored.
1.3 schwarze 73: .It Fl S Ar arch
1.13 ! schwarze 74: Restrict the search to pages for the specified
! 75: .Xr machine 1
! 76: architecture.
! 77: .Ar arch
! 78: is case insensitive.
! 79: By default, pages for all architectures are shown.
! 80: .It Fl s Ar section
! 81: Restrict the search to the specified section of the manual.
! 82: By default, pages from all sections are shown.
1.1 schwarze 83: See
84: .Xr man 1
1.13 ! schwarze 85: for a listing of sections.
1.4 schwarze 86: .El
87: .Pp
88: An
89: .Ar expression
90: consists of search terms joined by logical operators
91: .Fl a
92: .Pq and
93: and
94: .Fl o
95: .Pq or .
96: The
97: .Fl a
98: operator has precedence over
99: .Fl o
100: and both are evaluated left-to-right.
101: .Bl -tag -width Ds
102: .It \&( Ar expr No \&)
103: True if the subexpression
104: .Ar expr
105: is true.
106: .It Ar expr1 Fl a Ar expr2
107: True if both
108: .Ar expr1
109: and
110: .Ar expr2
111: are true (logical
112: .Qq and ) .
113: .It Ar expr1 Oo Fl o Oc Ar expr2
114: True if
115: .Ar expr1
116: and/or
117: .Ar expr2
118: evaluate to true (logical
119: .Qq or ) .
120: .It Ar term
121: True if
122: .Ar term
123: is satisfied.
124: This has syntax
125: .Li [key[,key]*(=~)]?val ,
126: where operand
1.7 schwarze 127: .Cm key
1.4 schwarze 128: is an
129: .Xr mdoc 7
130: macro to query and
1.7 schwarze 131: .Cm val
1.4 schwarze 132: is its value.
1.7 schwarze 133: See
134: .Sx Macro Keys
135: for a list of available keys.
1.4 schwarze 136: Operator
137: .Li \&=
138: evaluates a substring, while
139: .Li \&~
140: evaluates a regular expression.
141: .It Fl i Ar term
1.8 schwarze 142: If
1.4 schwarze 143: .Ar term
1.8 schwarze 144: is a regular expression, it
1.4 schwarze 145: is evaluated case-insensitively.
1.8 schwarze 146: Has no effect on substring terms.
1.1 schwarze 147: .El
148: .Pp
1.4 schwarze 149: Results are sorted by manual title, with output formatted as
1.1 schwarze 150: .Pp
1.3 schwarze 151: .D1 title(sec) \- description
1.1 schwarze 152: .Pp
153: Where
154: .Qq title
155: is the manual's title (note multiple manual names may exist for one
156: title),
1.3 schwarze 157: .Qq sec
158: is the manual section, and
1.1 schwarze 159: .Qq description
160: is the manual's short description.
161: If an architecture is specified for the manual, it is displayed as
162: .Pp
163: .D1 title(cat/arch) \- description
164: .Pp
165: Resulting manuals may be accessed as
166: .Pp
1.3 schwarze 167: .Dl $ man \-s sec title
1.1 schwarze 168: .Pp
169: If an architecture is specified in the output, use
170: .Pp
1.3 schwarze 171: .Dl $ man \-s sec \-S arch title
1.7 schwarze 172: .Ss Macro Keys
173: Queries evaluate over a subset of
174: .Xr mdoc 7
175: macros indexed by
176: .Xr mandocdb 8 .
177: In addition to the macro keys listed below, the special key
178: .Cm any
179: may be used to match any available macro key.
180: .Pp
181: Names and description:
182: .Bl -column "xLix" description -offset indent -compact
183: .It Li \&Nm Ta manual name
184: .It Li \&Nd Ta one-line manual description
185: .El
186: .Pp
187: Sections and cross references:
188: .Bl -column "xLix" description -offset indent -compact
189: .It Li \&Sh Ta section header (excluding standard sections)
190: .It Li \&Ss Ta subsection header
191: .It Li \&Xr Ta cross reference to another manual page
192: .It Li \&Rs Ta bibliographic reference
193: .El
194: .Pp
195: Semantic markup for command line utilities:
196: .Bl -column "xLix" description -offset indent -compact
197: .It Li \&Fl Ta command line options (flags)
198: .It Li \&Cm Ta command modifier
199: .It Li \&Ar Ta command argument
200: .It Li \&Ic Ta internal or interactive command
201: .It Li \&Ev Ta environmental variable
202: .It Li \&Pa Ta file system path
203: .El
204: .Pp
205: Semantic markup for function libraries:
206: .Bl -column "xLix" description -offset indent -compact
207: .It Li \&Lb Ta function library name
208: .It Li \&In Ta include file
209: .It Li \&Ft Ta function return type
210: .It Li \&Fn Ta function name
211: .It Li \&Fa Ta function argument type and name
212: .It Li \&Vt Ta variable type
213: .It Li \&Va Ta variable name
214: .It Li \&Dv Ta defined variable or preprocessor constant
215: .It Li \&Er Ta error constant
216: .It Li \&Ev Ta environmental variable
217: .El
218: .Pp
219: Various semantic markup:
220: .Bl -column "xLix" description -offset indent -compact
221: .It Li \&An Ta author name
222: .It Li \&Lk Ta hyperlink
223: .It Li \&Mt Ta Do mailto Dc hyperlink
224: .It Li \&Cd Ta kernel configuration declaration
225: .It Li \&Ms Ta mathematical symbol
226: .It Li \&Tn Ta tradename
227: .El
228: .Pp
229: Physical markup:
230: .Bl -column "xLix" description -offset indent -compact
231: .It Li \&Em Ta italic font or underline
232: .It Li \&Sy Ta boldface font
233: .It Li \&Li Ta typewriter font
234: .El
235: .Pp
236: Text production:
237: .Bl -column "xLix" description -offset indent -compact
238: .It Li \&St Ta reference to a standards document
239: .It Li \&At Ta At No version reference
240: .It Li \&Bx Ta Bx No version reference
241: .It Li \&Bsx Ta Bsx No version reference
242: .It Li \&Nx Ta Nx No version reference
243: .It Li \&Fx Ta Fx No version reference
244: .It Li \&Ox Ta Ox No version reference
245: .It Li \&Dx Ta Dx No version reference
246: .El
1.6 schwarze 247: .Sh ENVIRONMENT
1.13 ! schwarze 248: .Bl -tag -width MANPATH
1.6 schwarze 249: .It Ev MANPATH
1.13 ! schwarze 250: The standard search path used by
! 251: .Xr man 1
! 252: may be changed by specifying a path in the
! 253: .Ev MANPATH
! 254: environment variable.
1.6 schwarze 255: Invalid paths, or paths without manual databases, are ignored.
256: Overridden by
257: .Fl M .
1.10 schwarze 258: If
259: .Ev MANPATH
1.13 ! schwarze 260: begins with a colon, it is appended to the default list;
! 261: if it ends with a colon, it is prepended to the default list;
! 262: or if it contains two adjacent colons,
! 263: the standard search path is inserted between the colons.
! 264: If none of these conditions are met, it overrides the
! 265: standard search path.
1.9 schwarze 266: .El
267: .Sh FILES
268: .Bl -tag -width "/etc/man.conf" -compact
1.11 schwarze 269: .It Pa whatis.db
1.9 schwarze 270: name of the
271: .Xr mandocdb 8
272: keyword database
1.11 schwarze 273: .It Pa whatis.index
1.9 schwarze 274: name of the
275: .Xr mandocdb 8
276: filename database
277: .It Pa /etc/man.conf
278: default
279: .Xr man 1
280: configuration file
1.6 schwarze 281: .El
1.1 schwarze 282: .Sh EXIT STATUS
283: .Ex -std
284: .Sh EXAMPLES
285: Search for
1.4 schwarze 286: .Qq mdoc
1.8 schwarze 287: as a substring and regular expression
288: within each manual name and description:
1.4 schwarze 289: .Pp
290: .Dl $ apropos mdoc
1.8 schwarze 291: .Dl $ apropos ~^mdoc$
1.4 schwarze 292: .Pp
1.8 schwarze 293: Include matches for
294: .Qq roff
295: and
1.4 schwarze 296: .Qq man
1.8 schwarze 297: for the regular expression case:
1.4 schwarze 298: .Pp
1.8 schwarze 299: .Dl $ apropos ~^mdoc$ roff man
300: .Dl $ apropos ~^mdoc$ \-o roff \-o man
1.4 schwarze 301: .Pp
302: Search for
1.1 schwarze 303: .Qq optind
1.4 schwarze 304: and
305: .Qq optarg
306: as variable names in the library category:
1.1 schwarze 307: .Pp
1.8 schwarze 308: .Dl $ apropos \-s 3 Va~^optind \-a Va~^optarg$
1.1 schwarze 309: .Sh SEE ALSO
310: .Xr man 1 ,
1.8 schwarze 311: .Xr re_format 7 ,
312: .Xr mandocdb 8
1.1 schwarze 313: .Sh AUTHORS
314: The
315: .Nm
316: utility was written by
1.2 schwarze 317: .An Kristaps Dzonsons ,
318: .Mt kristaps@bsd.lv .
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