What is the difference between sed and awk?
sed is suitable for stream editing, such as replacing, deleting or inserting text; awk is suitable for data extraction and reporting, can process structured data and perform logical operations. Specifically: 1. Sed process row by row, good at simple replacement and row operations; 2. Awk processed by fields, supporting complex logic such as variables and conditions; 3. Use sed for quick editing, use awk to analyze data or generate reports. The two are often used in combination to give full play to their respective advantages.
Jul 07, 2025 am 12:08 AM
How to connect Mac to a TV
There are three ways to connect a Mac to a TV: 1. Use an HDMI cable to directly connect to ensure that the interface matches and switches the TV input source, and adjust the display mode in the system settings; 2. Connect through a USB-C to HDMI converter, you need to confirm that the adapter supports video output and power supply, and pay attention to resolution compatibility; 3. Use AirPlay wireless screen projection to ensure that the device is suitable for watching videos under the same Wi-Fi, but not for low-latency operations. Select the appropriate method according to the device interface and set it correctly to achieve large-screen display.
Jul 07, 2025 am 12:07 AM
How to reset the administrator password on a Windows Server?
1. Reset password using other administrator accounts: Enter the "Computer Management" interface through an existing administrator privilege account and find the target account to set a new password; 2. Reset password using installation media or restore environment: Enter the command prompt by starting the installation media, replace the system tools, use the Easy Access button to open the command prompt to execute the password modification command; 3. Reset password using third-party tools: Write to the USB flash drive with tools such as OfflineNTPassword & RegistryEditor to start for password operation. If you have administrator privileges, the first method is preferred. If you cannot log in to the system, you can try the second method. The third method is not feasible for the first two, but you need to pay attention to security risks. It is recommended to reserve a backup
Jul 07, 2025 am 12:06 AM
Create a MacOS Tahoe 26 Beta VM with Three Commands in Terminal Using tart
Advanced Mac users familiar with the command line can swiftly set up a MacOS Tahoe 26 beta virtual machine by entering a few commands into Terminal, using tart. Tart is a command-line utility for managing virtual machines and offers one of the quicke
Jul 06, 2025 am 09:28 AM
iOS 15.3 Beta 2 & iPadOS 15.3 Beta 2 Released for Testing
While Apple has just made iOS 15.2.1 and iPadOS 15.2.1 available to all users, they have also rolled out the second beta of iOS 15.3 and iPadOS 15.3 for those participating in Apple's beta testing programs for mobile operating systems.In addition, ne
Jul 06, 2025 am 09:25 AM
How to Install MacOS Tahoe 26 Beta Right Now
MacOS Tahoe 26 introduces the brand new Liquid Glass interface, adds the Phone app to Mac, enhances Spotlight with actions, includes new Apple Intelligence features, a dedicated Games app, Messages backgrounds for WhatsApp users, Live Activities from
Jul 06, 2025 am 09:24 AM
A Step-By-Step Guide to Installing Xubuntu 20.04 Linux
Xubuntu is a popular lightweight Linux distribution that is based on Ubuntu. It ships with an Xfce desktop environment which is light, stable, and highly configurable. Being a lightweight distribution, Xubuntu is a perfect choice for users who are ru
Jul 06, 2025 am 09:23 AM
20 YUM Commands for Linux Package Management
In this article, we will learn how to install, update, remove, find packages, manage packages and repositories on Linux systems using YUM (Yellowdog Updater Modified) tool developed by RedHat. The example commands shown in this article are practicall
Jul 06, 2025 am 09:22 AM
How to Run MacOS Tahoe 26 Beta in a UTM Virtual Machine
There are a variety of different ways to run MacOS Tahoe 26 beta, including installing it as an upgrade to an existing MacOS installation (which is not recommended for most people, by the way), but by far the safest and perhaps simplest way is to use
Jul 06, 2025 am 09:21 AM
MacOS Tahoe 26 Compatible Mac List & System Requirements
MacOS Tahoe 26 has officially arrived, and from the very first glance, you’ll notice a dramatic change with the brand-new Liquid Glass interface. This fresh design leans heavily on translucency, glossy icons and buttons, and an overall refreshed aest
Jul 06, 2025 am 09:20 AM
How to Create a Bootable macOS Tahoe 26 Beta USB Installer Drive
Creating a bootable macOS Tahoe installer USB is a useful method to perform clean installs, upgrade multiple Macs without redownloading, or maintain a reliable recovery disk. To create a bootable Tahoe installer, there are several prerequisites, but
Jul 06, 2025 am 09:19 AM
20 Netstat Commands for Linux Network Management
netstat (network statistics) is a command-line tool for monitoring network connections both incoming and outgoing as well as viewing routing tables, interface statistics, etc. [ You might also like: 22 Linux Networking Commands for Sysadmin ] netstat
Jul 06, 2025 am 09:18 AM
8 Linux Nslookup Commands to Troubleshoot DNS Lookup
nslookup is a command-line administrative tool for testing and troubleshooting DNS servers (Domain Name Server). It is used to query specific DNS resource records (RR) as well. Most operating systems come with a built-in nslookup feature. This articl
Jul 06, 2025 am 09:17 AM
How to Set a Custom SSH Warning Banner and MOTD in Linux
SSH banner warnings are essential when organizations or companies want to present a strict warning to deter unauthorized individuals from accessing a server.These warnings appear just before the password prompt, ensuring that unauthorized users attem
Jul 06, 2025 am 09:13 AM
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