'\" t
.TH "PORT\-ECHO" "1" "2\&.10\&.99" "MacPorts 2\&.10\&.99" "MacPorts Manual"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
port-echo \- Print the list of ports the argument expands to
.SH "SYNOPSIS"
.sp
.nf
\fBport\fR \fBecho\fR
     [[\fIportname\fR | \fIpseudo\-portname\fR | \fIport\-expressions\fR | \fIport\-url\fR]]
.fi
.SH "DESCRIPTION"
.sp
\fBport echo\fR expands its argument list according to MacPorts\*(Aq rules and prints a list of ports that match the expression given as argument\&. It can be useful to see what a pseudo\-portname or a pseudo\-portname selector (see \fBport\fR(1)) expands to\&.
.sp
If \fBport echo\fR doesn\(cqt recognize an argument as port, it will still print it as\-is\&. You cannot use \fBport echo\fR to check whether a port exists:
.sp
.if n \{\
.RS 4
.\}
.nf
$ port echo nonexistentport
nonexistentport
.fi
.if n \{\
.RE
.\}
.SH "EXAMPLES"
.sp
Common use cases are:
.sp
.if n \{\
.RS 4
.\}
.nf
port echo depends:zlib
port echo inactive
port echo obsolete
port echo requested
port echo leaves
port echo category:^mail$
.fi
.if n \{\
.RE
.\}
.sp
Note that \fBecho\fR is usually \fInot\fR used to list outdated ports, since a separate action \fBport-outdated\fR(1) exists for that\&. \fBport outdated\fR has the advantage compared to \fBport echo outdated\fR that it gives the reason why MacPorts considers the port outdated\&.
.SH "SEE ALSO"
.sp
\fBport\fR(1), \fBport-outdated\fR(1)
.SH "AUTHORS"
.sp
.if n \{\
.RS 4
.\}
.nf
(C) 2014 The MacPorts Project
Clemens Lang <cal@macports\&.org>
.fi
.if n \{\
.RE
.\}