The output will be what you expect, it will echo Hello World onto the screen. You can also use echo to view the contents of a variable: As with most Linux commands, there's definitely more that we can ...

No matter how many Amazon Echo commercials you see, it takes a little time to adjust to Alexa. Putting a virtual assistant in your home signals a change in lifestyle, sort of like adopting a puppy.

Amazon has also built on this a multiple commands feature by allowing you to string two related commands into one. You can say something like, "Alexa, play folk music at volume six," or, "Alexa, add ...

Bash functions are essentially reusable wrappers around commands. You can use them to define complex command pipelines or to perform some detailed work and echo the result. They accept arguments and ...

Our kids' room has its own routine. When we say, "Alexa, it's bedtime," their sound machine turns on (powered by a smart plug), their bedside lamp switches off, and their smart light strip turns on to ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Since its introduction at the end of 2014, the Amazon Echo has done ...

Even though they’re not quite as ubiquitous in homes compared to smart speakers, the continuing affordability of smart displays make them valuable assets with far more functionality. If the report ...

The Linux set command allows you to change the value of shell options or to display the names and values of shell variables. Rarely used, it is a bash builtin, but is quite a bit more complicated than ...