How to perform arithmetic operations in Bash?
Bashsupportsbasicmathoperationsusingthreemainmethods:$((...))forintegerarithmetic,letforin-scriptcalculations,andbcforfloating-pointmath.First,$((...))handlesaddition,subtraction,multiplication,division,andmoduluswithintegers,suchasecho$((5 3))whicho
Jul 03, 2025 am 12:07 AM
How to fix the Windows key not working on Windows 11
The Windows key failure can be solved by following the following steps: 1. Check the keyboard physical problem, try to replace the keyboard or plug and unplug the USB interface; 2. Confirm whether the "Disable Windows Key" setting is enabled, and check software or registry interception; 3. Update or reinstall the keyboard driver; 4. Run the system file repair tools SFC and DISM. In most cases, the above steps can be used to restore the Win key function.
Jul 03, 2025 am 12:03 AM
Windows not starting after installing new RAM
The computer cannot be turned on with a new memory stick, which may be caused by improper memory installation, hardware compatibility issues, or BIOS settings errors. First, check whether the memory slot is correct and re-plug and unplug the memory stick, clean the gold finger and make sure the snap is tight; second, try a single memory test to eliminate individual incompatibility; then confirm that the frequency, voltage, and brand of new and old memory should be consistent as much as possible to avoid using ECC memory on ordinary motherboards; then enter the BIOS to check the memory recognition status, restore the default settings or upgrade the BIOS to support new memory; finally check whether the hard disk boot item is normal, repair the boot record or confirm that the SATA cable connection is stable. Follow the above steps to check one by one, and the problem can usually be solved.
Jul 03, 2025 am 12:01 AM
How to Sync Microsoft Forms to Excel
Microsoft Forms is one of the few worthwhile options for online surveys, particularly due to the fact it combines with other Microsoft Office tools for a more complete experience. But even with that, you have limited options when it comes to viewing
Jul 02, 2025 pm 12:01 PM
How to Use Keyboard as Mouse on Mac
Did you know you can use your Keyboard as a mouse for Mac? This is an excellent accessibility feature, but it has some other uses too. For example, did your MacBook’s trackpad stop working all of a sudden? Or did your Magic Mouse battery go out? W
Jul 02, 2025 am 10:09 AM
Wanna see your all-time most-played songs on Apple Music? Here’s how
It’s hard to believe, but if you’ve been an Apple Music subscriber since its inception, you’ve been streaming for a full decade. Announced as “One more thing” at WWDC 2015, the service launched on June 30, 2015, months be
Jul 02, 2025 am 10:05 AM
How to Install dbWatch to Monitor MySQL Performance in Linux
dbWatch is a powerful, multi-platform, fully-featured, and enterprise-grade SQL database monitoring and management tool that gives you full control over your database instances and system resources. It is highly scalable, secure, and designed for man
Jul 02, 2025 am 10:04 AM
How to Convert Pages to Word on Mac
If you work with Pages and Word files across platforms, say on a Mac and Windows PC, you may occasionally run into file compatibility issues between the computers and software. For example, maybe you’re having trouble opening a Pages document with
Jul 02, 2025 am 10:02 AM
Puppy Linux – A Collection of Multiple Linux Distributions
First of all, let me say that I am a big fan of Puppy Linux. The reason for this is simple: Puppy and its multiple variations with support for application packages from bases ranging from Ubuntu to Slackware and Arch Linux while being one of the most
Jul 02, 2025 am 10:01 AM
How to Enable Kernel Extensions on Mac? How to Activate Them on macOS?
What is a kernel extension on MacA kernel extension (also known as kext) is a piece of code that loads into the macOS kernel, allowing drivers and various security tools to improve how your Mac's system works.Why approv
Jul 02, 2025 am 10:00 AM
Public Beta 4 of iOS 15, iPadOS 15, MacOS Monterey Released for Testing
Apple has released new public beta versions of iOS 15, iPadOS 15, MacOS Monterey, watchOS 8, and tvOS 15. The beta updates are available now to all users participating in the public beta testing programs. The new public beta builds match the concurre
Jul 02, 2025 am 09:57 AM
MacOS Monterey Beta 4 Available to Download
Apple has released the fourth beta version of MacOS Monterey to Mac users participating in the beta testing program for Mac system software. The developer beta is available now and is typically soon followed by the same build for public beta testers.
Jul 02, 2025 am 09:54 AM
Clear Linux Distro - Optimized for Performance and Security
Clear Linux OS is the ideal operating system for people – ahem system admins – who want to have a minimal, secure, and reliable Linux distribution. It is optimized for the Intel architecture, which means that running Clear Linux OS on AMD sys
Jul 02, 2025 am 09:49 AM
How to Run a Command Multiple Times in Linux
For one reason or the other, you may wish to run a command repeatedly for several times in Linux. This guide will discuss some of the common and effective ways to achieve just that. Let’s consider the first method. Note that if you intend to run a co
Jul 02, 2025 am 09:47 AM
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