pwhich.1

视频监控网络部分的协议ddns,的模块的实现代码,请大家大胆指正.

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.\" ========================================================================
.\"
.IX Title "PWHICH 1"
.TH PWHICH 1 "2002-06-24" "perl v5.10.0" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.SH "NAME"
pwhich \- Perl\-only `which'
.SH "Synopsis"
.IX Header "Synopsis"
.Vb 4
\&  $ pwhich perl
\&  $ pwhich \-a perl          # print all matches
\&  $ pwhich perl perldoc ... # look for multiple programs
\&  $ pwhich \-a perl perldoc ...
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
`pwhich' is a command-line utility program for finding paths to other
programs based on the user's \f(CW\*(C`PATH\*(C'\fR. It is similar to the usualy Unix
tool `which', and tries to emulate its functionality, but is written
purely in Perl (uses the module \f(CW\*(C`File::Which\*(C'\fR), so is portable.
.SH "Calling syntax"
.IX Header "Calling syntax"
.Vb 1
\&  $ pwhich [\-a] [\-v] programname [programname ...]
.Ve
.Sh "Options"
.IX Subsection "Options"
.IP "\-a" 4
.IX Item "-a"
The option \fI\-a\fR will make \f(CW\*(C`pwhich\*(C'\fR print all matches found in the
\&\f(CW\*(C`PATH\*(C'\fR variable instead of just the first one. Each match is printed
on a separate line.
.IP "\-v" 4
.IX Item "-v"
Prints version (of \f(CW\*(C`File::Which\*(C'\fR) and copyright notice and exits.
.SH "License"
.IX Header "License"
This program is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
.SH "See Also"
.IX Header "See Also"
perl, File::Which, \fIwhich\fR\|(1)
.SH "Author"
.IX Header "Author"
Per Einar Ellefsen, <per.einar (at) skynet.be>