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129 | .\" ======================================================================== | |
130 | .\" | |
131 | .IX Title "PERLDOC 1" | |
132 | .TH PERLDOC 1 "2002-08-28" "perl v5.8.0" "Perl Programmers Reference Guide" | |
133 | .SH "NAME" | |
134 | perldoc \- Look up Perl documentation in pod format. | |
135 | .SH "SYNOPSIS" | |
136 | .IX Header "SYNOPSIS" | |
137 | \&\fBperldoc\fR [\fB\-h\fR] [\fB\-v\fR] [\fB\-t\fR] [\fB\-u\fR] [\fB\-m\fR] [\fB\-l\fR] [\fB\-F\fR] [\fB\-X\fR] PageName|ModuleName|ProgramName | |
138 | .PP | |
139 | \&\fBperldoc\fR \fB\-f\fR BuiltinFunction | |
140 | .PP | |
141 | \&\fBperldoc\fR \fB\-q\fR \s-1FAQ\s0 Keyword | |
142 | .SH "DESCRIPTION" | |
143 | .IX Header "DESCRIPTION" | |
144 | \&\fIperldoc\fR looks up a piece of documentation in .pod format that is embedded | |
145 | in the perl installation tree or in a perl script, and displays it via | |
146 | \&\f(CW\*(C`pod2man | nroff \-man | $PAGER\*(C'\fR. (In addition, if running under \s-1HP\-UX\s0, | |
147 | \&\f(CW\*(C`col \-x\*(C'\fR will be used.) This is primarily used for the documentation for | |
148 | the perl library modules. | |
149 | .PP | |
150 | Your system may also have man pages installed for those modules, in | |
151 | which case you can probably just use the \fIman\fR\|(1) command. | |
152 | .PP | |
153 | If you are looking for a table of contents to the Perl library modules | |
154 | documentation, see the perltoc page. | |
155 | .SH "OPTIONS" | |
156 | .IX Header "OPTIONS" | |
157 | .IP "\fB\-h\fR help" 5 | |
158 | .IX Item "-h help" | |
159 | Prints out a brief help message. | |
160 | .IP "\fB\-v\fR verbose" 5 | |
161 | .IX Item "-v verbose" | |
162 | Describes search for the item in detail. | |
163 | .IP "\fB\-t\fR text output" 5 | |
164 | .IX Item "-t text output" | |
165 | Display docs using plain text converter, instead of nroff. This may be faster, | |
166 | but it won't look as nice. | |
167 | .IP "\fB\-u\fR unformatted" 5 | |
168 | .IX Item "-u unformatted" | |
169 | Find docs only; skip reformatting by pod2* | |
170 | .IP "\fB\-m\fR module" 5 | |
171 | .IX Item "-m module" | |
172 | Display the entire module: both code and unformatted pod documentation. | |
173 | This may be useful if the docs don't explain a function in the detail | |
174 | you need, and you'd like to inspect the code directly; perldoc will find | |
175 | the file for you and simply hand it off for display. | |
176 | .IP "\fB\-l\fR file name only" 5 | |
177 | .IX Item "-l file name only" | |
178 | Display the file name of the module found. | |
179 | .IP "\fB\-F\fR file names" 5 | |
180 | .IX Item "-F file names" | |
181 | Consider arguments as file names, no search in directories will be performed. | |
182 | .IP "\fB\-f\fR perlfunc" 5 | |
183 | .IX Item "-f perlfunc" | |
184 | The \fB\-f\fR option followed by the name of a perl built in function will | |
185 | extract the documentation of this function from perlfunc. | |
186 | .IP "\fB\-q\fR perlfaq" 5 | |
187 | .IX Item "-q perlfaq" | |
188 | The \fB\-q\fR option takes a regular expression as an argument. It will search | |
189 | the question headings in perlfaq[1\-9] and print the entries matching | |
190 | the regular expression. | |
191 | .IP "\fB\-X\fR use an index if present" 5 | |
192 | .IX Item "-X use an index if present" | |
193 | The \fB\-X\fR option looks for an entry whose basename matches the name given on the | |
194 | command line in the file \f(CW\*(C`$Config{archlib}/pod.idx\*(C'\fR. The pod.idx file should | |
195 | contain fully qualified filenames, one per line. | |
196 | .IP "\fB\-U\fR run insecurely" 5 | |
197 | .IX Item "-U run insecurely" | |
198 | Because \fBperldoc\fR does not run properly tainted, and is known to | |
199 | have security issues, it will not normally execute as the superuser. | |
200 | If you use the \fB\-U\fR flag, it will do so, but only after setting | |
201 | the effective and real IDs to nobody's or nouser's account, or \-2 | |
202 | if unavailable. If it cannot relinquish its privileges, it will not | |
203 | run. | |
204 | .IP "\fBPageName|ModuleName|ProgramName\fR" 5 | |
205 | .IX Item "PageName|ModuleName|ProgramName" | |
206 | The item you want to look up. Nested modules (such as \f(CW\*(C`File::Basename\*(C'\fR) | |
207 | are specified either as \f(CW\*(C`File::Basename\*(C'\fR or \f(CW\*(C`File/Basename\*(C'\fR. You may also | |
208 | give a descriptive name of a page, such as \f(CW\*(C`perlfunc\*(C'\fR. | |
209 | .SH "ENVIRONMENT" | |
210 | .IX Header "ENVIRONMENT" | |
211 | Any switches in the \f(CW\*(C`PERLDOC\*(C'\fR environment variable will be used before the | |
212 | command line arguments. \f(CW\*(C`perldoc\*(C'\fR also searches directories | |
213 | specified by the \f(CW\*(C`PERL5LIB\*(C'\fR (or \f(CW\*(C`PERLLIB\*(C'\fR if \f(CW\*(C`PERL5LIB\*(C'\fR is not | |
214 | defined) and \f(CW\*(C`PATH\*(C'\fR environment variables. | |
215 | (The latter is so that embedded pods for executables, such as | |
216 | \&\f(CW\*(C`perldoc\*(C'\fR itself, are available.) \f(CW\*(C`perldoc\*(C'\fR will use, in order of | |
217 | preference, the pager defined in \f(CW\*(C`PERLDOC_PAGER\*(C'\fR, \f(CW\*(C`MANPAGER\*(C'\fR, or | |
218 | \&\f(CW\*(C`PAGER\*(C'\fR before trying to find a pager on its own. (\f(CW\*(C`MANPAGER\*(C'\fR is not | |
219 | used if \f(CW\*(C`perldoc\*(C'\fR was told to display plain text or unformatted pod.) | |
220 | .PP | |
221 | One useful value for \f(CW\*(C`PERLDOC_PAGER\*(C'\fR is \f(CW\*(C`less \-+C \-E\*(C'\fR. | |
222 | .SH "VERSION" | |
223 | .IX Header "VERSION" | |
224 | This is perldoc v2.03. | |
225 | .SH "AUTHOR" | |
226 | .IX Header "AUTHOR" | |
227 | Kenneth Albanowski <kjahds@kjahds.com> | |
228 | .PP | |
229 | Minor updates by Andy Dougherty <doughera@lafcol.lafayette.edu>, | |
230 | and others. |