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Full Discussion: scripting help
Top Forums Shell Programming and Scripting scripting help Post 302568648 by anuajay1988 on Friday 28th of October 2011 12:07:56 AM
Old 10-28-2011
scripting help

I have a file having following lines :

201110180036 METAR PABL 180036Z AUTO 13005KT 10SM SCT037 BKN045 OVC055 01/M02 A2986 RMK PNO=

201110172350 METAR ENSB 172350Z 12010KT 9999 FEW030 M010/M12 Q1008 RMK WIND 1400FT 10008KT=

201110172350 METAR ENAN 172350Z 17006KT CAVOK 06/04 Q0996=

201110172350 METAR ENDU 172350Z 00000KT 9999 FEW035 SCT090 BKN200 02/02 Q0997=


and are many more such lines. I want that it should be first read line by line and then each line word by word... and it should take only required words from each line in a new file... words are...
first it should check for the 1st word if it is date tag ie 201110172350 it should b taken,
then it shoud check for next word It should be METAR,
then the next word should be PABL or OPKC or any icao code which is of 4 letters (R) only letters.

Then the next word should be the time ie 172350Z , last 6 digits of forst word and having 'Z' in last.

Next word should be 00000KT or 23005MPS or 23005G15KT or (wind code) which can have its unit in KT or KTS or MPS or MPH....

Next word it should look for visibility, that can be 10SM or 9999 or 6000 or 5000 ( in 4 digits) or CAVOK, but if it is 10SM or CAVOK it sould be converted as 9999.

Next word it should look for the cloud layer, it can be in 3-4 wordds.... and will start either from FEW, SCT, BKN, OVC or NSC Or SKC or CAVOK.

The next word it should look for the temperature block 06/04....

the next word it should take the pressure wich will start from 'Q' eg : Q0997... or Q1002 which will be in 5digits.
And If there is any remark which wwill start from RMK it should come in last.... and each line should end with an '=' sign....

So the output of the resulting output file should be as follows:

201110180036 METAR PABL 180036Z 13005KT 9999 SCT037 BKN045 OVC055 01/M02=

201110172350 METAR ENSB 172350Z 12010KT 9999 FEW030 M010/M12 Q1008 RMK WIND 1400FT 10008KT=

201110172350 METAR ENAN 172350Z 17006KT CAVOK 06/04 Q0996=

201110172350 METAR ENDU 172350Z 00000KT 9999 FEW035 SCT090 BKN200 02/02 Q0997=
..

After this prob is solved i will tell you the next step.... i think it will be easy to break that big problem into pieces and then solve it....

Thanx in advance... .
 

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WMWEATHER(1)							   Version 2.4.5						      WMWEATHER(1)

NAME
wmweather - dockable weather monitor SYNOPSIS
wmweather -s <4-char ICAO location indicator> [options] DESCRIPTION
wmweather monitors local weather conditions: temperature, dew point, pressure, humidity and wind direction and speed. The user needs to specify a 4-character `ICAO location indicator'. The standardized METAR station designations and current weather reports are designed for use by the aviation community. Since most major cities have at least one airport, there is usually one or more METAR stations in a given city. You--obviously--need to be connected to the internet and you also need to have libcurl installed. wmweather will then attempt to download the latest METAR report for the station of your choice from the National Weather Sevice run by NOAA. You can toggle back and forth between imperial and metric units, i.e. between degrees Fahrenheit, inches of Mercury, and miles per hour--and--degrees Celsius, hectoPascal, and kilometers per hour. A middle click will do this. Also, a left click will bring up the fully decoded METAR report in xmessage. And a right click will force an immediate update, i.e. wmweather will attempt to grab weather information. OPTIONS
-s id, --station=id This option tells wmweather which METAR station to show data for. id can be any four-letter ICAO location indicator, which can be found at http://www.nws.noaa.gov/tg/siteloc.shtml. -c, --compat Switch into compatibility mode. The old monitor style will be used, default metric pressure units are millimeters of Mercury instead of hectoPascal, and the colorization options are enabled. When the time turns red, this means that the weather report is older than 24 hours. When the wind speed turns red, this means that the wind is gusty and the listed value is an average only. Similarly, a red direction indicates a variable wind direction and the value given is the average direction. The symbolic link wmWeather is func- tionally equivalent to wmweather --compat. -d [@]min, --delay=[@]min Set the time (in minutes) between updates, default is 15 minutes. Use @ to specify minutes past the hour. -m, --metric Display metric values: temperatures in degrees Celsius rather than degrees Fahrenheit, pressure in hectoPascal rather than inches of Mercury, and wind speed in kilometers per hour rather than miles per hour. This option can be toggled at runtime using a middle click. -w, --chill, -W Display wind chill--if available--instead of dew point temperature. -e, --heat Display wind heat index--if available--instead of temperature. -b, --beaufort Display wind speed on the `Beaufort scale'. -n, --knots Display wind speed in units of knots, i.e. sea miles per hour. -u, --utc Display update time in UTC instead of localtime. This is equivalent to --time=+0000. -t offset, --time=offset Convert update time according to (RFC 822 compliant) time offset rather than to localtime, e.g. --time=+0100 for MET. -x host[:port], --proxy=host[:port] Proxy specification, this option is passed to libcurl. -U username[:password], --proxy-user=username[:password] Proxy authentication, this option is passed to libcurl. Please don't specify this option, use the file ~/.netrc for authentication instead. --lcd Use LCD style display. --display=id Set the display to use, e.g. --display=:0.0. --geometry=pos Set the position of the dock app. Note that the size (64x64) is hard-coded and cannot be changed. -h, --help Display a list of command-line options. -v, --version Display the program version. -a, --hPa When toggled to metric, display pressure in units of hectoPascals, i.e. milliBars. -k, --kPa When toggled to metric, display pressure in units of kiloPascals. -g, --mmHg When toggled to metric, display pressure in units of millimeters of Mercury. -p, --mps When toggled to metric, display wind speed in units of meters per second. --bc=color When toggled to compatibility mode, set the background color (#8e8e69 is LCD-ish). --lc=color When toggled to compatibility mode, set the color of the labels, e.g. --lc=red or --lc=salmon or --lc=#4523ff. --dc=color When toggled to compatibility mode, set the color of the data entries. --wgc=color When toggled to compatibility mode, set the gusty-wind/variable-direction color. The wind speed indicator will turn this color when the wind speed is gusty. The value shown in this case is the average speed. Similarly, the wind direction indicator with change to this color when the wind direction is variable. The value shown in this case is the average direction. --tc=color When toggled to compatibility mode, set the color of the ICAO location indicator and update time header. FILES
/etc/wmweather.conf The system-wide configuration file. Specify one long option per line, e.g. station=EDDC or metric. Whitespace, empty lines, and lines beginning with a # will be ignored. ~/.wmweather/config The user configuration file. ~/.wmweather/???? These files contain the latest downloaded weather records in decoded METAR format. ~/.netrc These file contains authentication information and should be used in preference to --proxy-user. ENVIRONMENT
http_proxy The HTTP proxy to be used, see also --proxy. SEE ALSO
netrc(5) To find out more about NOAA's National Weather Service, have a look at http://www.nws.noaa.gov/. BUGS
Please report any bugs to <martin@godisch.de>. Debian users are encouraged to use the Debian Bug Tracking System at http://bugs.debian.org/wmweather. AUTHORS
Version 1: Michael G. Henderson <mghenderson@lanl.gov> Version 2: Martin A. Godisch <martin@godisch.de> Contributors: Athanasius, Pablo Castellazzi, Avtar Gill, Adam Lackorzynski, Jon Larabee, Jordi Mallach, Paul Martin, HIROSE Masaaki, Michael Potters The Debian Project July 2009 WMWEATHER(1)
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