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80 lines
2.9 KiB
80 lines
2.9 KiB
.\" Copyright (C) 2017 Alessandro Menti
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.\"
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.\" This program is free software; you can redistribute it and/or
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.\" modify it under the terms of the GNU General Public License
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.\" as published by the Free Software Foundation; either version 2
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.\" of the License, or (at your option) any later version.
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.\"
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.\" This program is distributed in the hope that it will be useful,
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.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
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.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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.\" GNU General Public License for more details.
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.\"
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.\" You should have received a copy of the GNU General Public License
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.\" along with this program; if not, write to the Free Software
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.\" Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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.\" Or try here: http://www.fsf.org/copyleft/gpl.html
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.\"
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.TH METAR 1 2017-06-25 FlightGear "FlightGear man pages"
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.SH NAME
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metar \- demo METAR utility for FlightGear
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.SH SYNOPSIS
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\fBmetar\fR \fB\-h\fR | \fB\-\-help\fR | [\fB\-v\fR | \fB\-\-verbose\fR]
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[\fB\-e\fR \fIelevation\fR | \fB\-\-elevation\fR \fIelevation\fR] [\fB\-r\fR |
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\fB\-\-report\fR | \fB\-c\fR | \fB\-\-command\-line\fR] \fI<list of ICAO airport
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IDs or METAR strings>\fR
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.SH DESCRIPTION
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.B metar
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is a demo utility for FlightGear that retrieves a METAR (encoded weather
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information) for one or more given airports from the Internet and displays it
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in a user-readable form. Optionally, it can also print the command-line
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arguments required to start
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.BR fgfs (1)
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at the current time and with the weather conditions in effect.
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.SH OPTIONS
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.TP
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\fB\-h\fR, \fB\-\-help\fR
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Display usage information and exit.
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.TP
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\fB\-v\fR, \fB\-\-verbose\fR
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Display debugging information while performing the required operation.
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.TP
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\fB\-e\fR \fIelevation\fR, \fB\-\-elevation\fR \fIelevation\fR
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Set the airport elevation to \fIelevation\fR meters.
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.TP
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\fB\-r\fR, \fB\-\-report\fR
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Print the weather information on the screen in a user-readable form.
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.TP
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\fB\-c\fR, \fB\-\-command\-line\fR
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Print the command-line arguments required to start FlightGear at the current
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time and with the weather conditions in effect.
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.SH "EXIT STATUS"
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.B metar
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exits with
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.B 0
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on success, with
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.B 1
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if the syntax of the command-line arguments is wrong or an error occurs.
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.SH ENVIRONMENT
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.IP "\fBHTTP_PROXY\fR" 4
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Specifies the HTTP proxy to use. Must be in the form
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\fBhttp://host:port/\fR.
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.SH EXAMPLE
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Print the current weather information for KSFO and KOAK:
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$ \fBmetar KSFO KOAK\fR
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Print the current weather information for KSFO, as well as the command line
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arguments required to start FlightGear with the weather conditions in effect:
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$ \fBmetar -c KSFO -r KSFO\fR
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Print the given METAR string as a user-readable weather report:
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$ \fBmetar "LOWL 161500Z 19004KT 160V240 9999 FEW035 SCT300 29/23 Q1006 NOSIG"\fR
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.SH "SEE ALSO"
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.BR fgfs (1),
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.UR http://\:wiki.flightgear.org/\:Weather_reports
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the FlightGear wiki "Weather reports" page
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.UE
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