Signal is published by the Signal Foundation and Signal Messenger LLC. These two not-for-profit organizations—based in Mountain View, California—were founded by Matthew Rosenfeld (aka ‘Moxie Marlinspike’) and Brian Acton. Together they continue the work started at Open Whisper Systems, one of Rosenfeld’s earlier start-ups.

The Signal application is free and open source. Anyone can review the source code. The source code for the Signal Messenging Protocol (SMP) was reviewed by a joint team from the German CISPA Helmholtz Center for Information Security, the Swiss ETH Zurich University, Cisco, and the Canadian University of Waterloo. They declared the code clean, the motives pure, and the encryption rock-solid. Signal is definitely secure.

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The Linux screen command is a versatile tool that allows you to run terminal applications in the background and switch back to them when needed. It supports split-screen displays and can be used over SSH connections, even after disconnecting and reconnecting. With screen, you can create new windows, run multiple processes, detach and reattach sessions, and share sessions between multiple users in real-time.

With the Linux screen command, you can push running terminal applications to the background and pull them forward when you want to see them. It also supports split-screen displays and works over SSH connections, even after you disconnect and reconnect!

What Is the screen Command?

The screen command is a terminal multiplexer, and it’s absolutely packed with options. To say it can do a lot is the granddaddy of understatements. The man page runs to over 4,100 lines.

The following are the most common cases in which you would use the screen command, and we’ll cover these further in this article:

• The standard operation is to create a new window with a shell in it, run a command, and then push the window to the background (called “detaching”). When you want to see how your process is doing, you can pull the window to the foreground again (“reattach”) and use it again. This is great for long processes you don’t want to accidentally terminate by closing the terminal window.
• Once you’ve got a screen session running, you can create new windows and run other processes in them. You can easily hop between windows to monitor their progress. You can also split your terminal window into vertical or horizontal regions, and display your various screen windows in one window.
• You can connect to a remote machine, start a screen session, and launch a process. You can disconnect from the remote host, reconnect, and your process will still be running.
• You can share a screen session between two different SSH connections so two people can see the same thing, in real-time.

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Go to Settings > Passwords, then hit the “+” icon and select “New Shared Group.” Give the group a name and choose the contacts you want to share passwords with, then hit “Create.”

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To use Check In, open a Messages conversation for the contact you want to use it with, tap the “+” icon, then scroll down and choose “Check In.”

• Select how much data you want to share before hitting “Continue.” Once your trip is over, your contact will be notified you arrived safely.

• Check In only works when both devices are running iOS 17.0 or later.

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Quick Tap on Google Pixel: Go to Settings > System > Gestures to enable Quick Tap. Choose an action and simply tap the back of your phone twice to activate it.

 Back Tap on Samsung Galaxy: Install the RegiStar Good Lock module. Select “Back-Tap Action” and set actions for double tap and triple tap gestures. Tap the back of your phone the specified number of times to activate the actions.

Tap, Tap for Android: Download Tap, Tap APK file from GitHub and toggle it on. Customize double tap and triple tap actions. Enable the Accessibility Service for certain actions. Use handles to adjust the order and add requirements or gates. Explore numerous options for useful shortcuts.

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To make an animated sticker out of a live photo, open a Messages chat and tap the “+” icon, followed by “Stickers.” Select “New Sticker” and choose the Live Photo you want, then hit “Add Sticker.”

•  They’re only supported in Messages, but if you use other messaging platforms like WhatsApp or Instagram, you can still create static stickers with fun effects.
•  You can also convert Live Photos to GIFs in WhatsApp without any third-party apps.
• You can create cool animated stickers using Live Photos on your iPhone. Akin to the background remover on iOS 16, Apple has introduced a new feature in iOS 17 that picks the subjects from Live Photos and converts them into animated stickers.

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Newer isn’t always better, and the

wget

command is proof. First released back in 1996, this application is still one of the best download managers on the planet. Whether you want to download a single file, an entire folder, or even mirror an entire website, wget lets you do it with just a few keystrokes.

Of course, there’s a reason not everyone uses wget: it’s a command line application, and as such takes a bit of time for beginners to learn. Here are the basics, so you can get started.

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The wget command is meant primarily for downloading webpages and websites, and, compared to cURL, doesn’t support as many protocols. cURL is for remote file transfers of all kinds rather than only websites, and it also supports additional features like file compression.

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If you ask a bunch of Linux users what they download files with, some will say wget and others will say cURL. What’s the difference, and is one better than the other?

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Why do Debian-based Linux distributions have apt as well as apt-get? Did apt replace apt-get or do they have different purposes? We explain the relationship between these two commands.

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