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You can use Linux smart home technology to automate any number of processes in your home from turning on lamps to building your own video recorder.
Table of contents

This is what the menu. To add the Weather Report button, follow these steps: 1. Open that Web page in your favorite editor. It was just too long to display on this page, so I broke it up to make it a little more readable. Change the city code currently jfk, right after the first question mark to whatever city code you selected and save the file. The city code, jfk, is an argument being passed to the nws.

You can add more than one of these lines to the menu. The button. The word Weather will appear on the button in the first example. Change the button name to something else if you like by editing the button.

Be careful not to put too much on the button because MH will shrink the font size to make everything fit. MH will create a new button called Weather. Click the Weather menu button to execute the nws. The nws. The weather script returns the data it captured to nws. At this point, nws. The weather program will return the weather for the Trenton NJ area. The weather command will go out and pull back the weather information for the city code you request.

The search and replace functions involves regular expressions.


The letter g towards the end of the line signifies to do this task globally the entire string. This effectively double spaces everything, which is great for term papers but looks lousy on Web pages. The normal line ending for Linux is a linefeed. Without it, the com- mand just performs the search and replace on the first match it finds. Overnight Partly cloudy becoming mostly cloudy. Lows in the lower 40s. South winds 10 to 15 mph.

You might have noticed while running the weather command manually that there was a long pause between the time you pressed Enter and the time it took to display all the information. One solution is to move the page creation to outside MH but to put the finished page in the appropriate Web directory.

Quick-Start & Step by Step Guides for Plex Media Server | Plex Support

You can do so by using a script with cron, instructing it to run the command at some odd hour, and parsing the output into a suitable format for MR. You would then have a button the points to the output Web page instead of a Perl script. You could run the cron job once a day or a couple times a day. Figure The National Weather Service script.

You can create a whole page that contains information from other scripts running under MH. You could also add a new link to menu. You can keep a running total of your daily, weekly, monthly, and yearly transfer rates and byte counts. Or you could combine your home weather station information with the information from the National Weather Service to create a more useful weather page current weather and forecasts. You can add graphs and pictures to further enhance the page.

You can get weather data from your personal weather station. Regular expres- sions are syntax rules for pattern matching. Perl also has an extensive set of rules ai caramba, do they got rules for using regex with its scripts. These Perl regex rules cover group- ing, quantifying, and an assortment of wildcards rules. Plain and simple, they are extremely pow- erful and make searching and manipulating strings easy to do. Unfortunately they are also very complex.

Virtual IoT - Building a Cloudless Smart Home with openHAB 2

There are entire books not just one on the subject for just Perl. The g at the end of the com- mand means globally. From here, more options can be added. These tasks fall under the heading of system adminis- tration, and performing. Trung tam cham soc nguoi cao tuoi khong luu tru 3 0 0. Economics 3rd ch09 37 0 0. Economics 3rd ch08 31 0 0. Bai 13 cam hoa trang tri 24 0 0. Linux smart homes for dummies - part 6 docx 38 0.

Linux smart homes for dummies - part 1 pdf 32 0. Linux smart homes for dummies - part 2 potx 35 0. Linux smart homes for dummies - part 4 ppsx 35 0.

Linux Smart Homes For Dummies Cheat Sheet

Linux smart homes for dummies - part 5 pps 35 0. The same chapter includes information about several other driver and interface software projects. By contrast, the information on building a Linux-based personal video recorder concentrates on MythTV. While the book touches on motion detection with software such as Motion , it goes into very little detail.

But by following the provided URLs, a reader who likes to tinker which is the kind of reader who would buy the book can learn enough to do some fancy things, such as turning on lights or recording video when motion is detected. Speaking of video, Cherry devotes a chapter to applications like CamStream , for doing tasks with a webcam such as putting streaming video on a Web page, and Ekiga , for videoconferencing. There is plenty more inside, including chapters on setting up Asterisk for telephony, monitoring the weather, and several other cool project ideas.

The CD inside the back cover contains all of the software mentioned in the book, including open source scripts and product configuration files. If the book has a flaw, it is that it might be a little light on hands-on tips and tricks for getting out of trouble when things go wrong. But the text provides enough online references that readers can probably track down the answers themselves. Sign in. Log into your account. Forgot your password?