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Articles on Trending Technologies
Technical articles with clear explanations and examples
4 Ways to View Disks and Partitions in Linux
As an open-source operating system, Linux provides various tools and commands that allow users to manage their disk and partition configurations. Whether you're a system administrator or a casual user, understanding how to view disk and partition information is essential for system maintenance and troubleshooting. Using fdisk Command The fdisk command is a powerful command-line utility that displays detailed partition table information. It shows disk geometry, partition types, and sector information for storage devices. To view all partitions on a specific disk, use the -l (list) option − sudo fdisk -l /dev/sda This ...
Read More5 Ways to Find a ‘Binary Command’ Description and Location on File System
Have you ever encountered a binary command and wondered where it's located on your file system? A binary command is a compiled program that you can run in your terminal. It's easy to get lost in the maze of directories on your computer, but fear not — we have compiled five ways to find a binary command's description and location on your file system. Use "which" Command The which command is a simple but effective way to locate a binary command's location. It tells you the full path of the command you are looking for. Simply open your ...
Read MoreWhat are the characteristics of batch, embedded, real time and mainframe operating systems?
Operating systems are designed to meet specific requirements based on their intended use. Different computing environments require distinct characteristics to ensure optimal performance, reliability, and efficiency. Let's explore the key characteristics of batch, embedded, real-time, and mainframe operating systems. Characteristics of Mainframe Operating Systems Mainframe operating systems are designed for large-scale enterprise computing with the following characteristics − High Processing Power − These systems have multiple CPUs, each with great processing power. All CPUs are combined into the mainframe, resulting in exceptional computational capabilities. Massive Memory Capacity − The memory of mainframe systems is very large, ...
Read MoreWhat are the essential properties of the different types of operating systems?
The essential properties of the different types of operating systems are as follows − Batch Operating System Batch operating systems group similar jobs together and execute them sequentially without user interaction. Jobs with similar requirements are collected into batches and processed by an operator or automatic job sequencer. Key Properties: Jobs are executed in groups without manual intervention High throughput through CPU and I/O device utilization via buffering, spooling, and multiprogramming Suitable for large computational jobs requiring minimal interaction Jobs can be submitted and results collected later Interactive Operating System Interactive operating systems ...
Read MoreMastering Package Management system with Dpkg
Dpkg is a low-level package management tool for Debian-based Linux systems. It provides direct control over package installation, removal, configuration, and querying through command-line parameters. Unlike higher-level tools like apt, dpkg operates directly on .deb package files and maintains the package database. Every dpkg command consists of one action parameter that tells dpkg what to do, along with optional flags that modify the behavior. Dpkg is the foundation upon which other package managers are built. Getting Help To view all available dpkg options and commands − dpkg --help This displays a comprehensive list ...
Read More4 Ways to Watch or Monitor Log Files in Real Time
Log files are a vital component of any computer system − they contain detailed records of activities and events that occur on a system. These files help you understand what happened in the past, but in certain scenarios, you might want to monitor them in real-time to stay ahead of issues and troubleshoot problems before they escalate. This article explores 4 primary ways to watch or monitor log files in real-time. Tail Command The tail command is a popular Unix/Linux utility used to display the last few lines of a file. It's particularly useful for monitoring log files ...
Read More5 Ways to Fix ifconfig Command not Found Error on Debian
If you are a Debian user, you might have encountered the "ifconfig command not found" error while trying to check your network interface configurations. This error occurs when the ifconfig command is not installed on your Debian system or the package containing it is not properly configured. The ifconfig command has been deprecated in favor of modern alternatives, but many users still rely on it. This article discusses several effective methods to resolve this error and restore network interface management capabilities. Method 1: Install Net-tools Package The most straightforward solution is to install the net-tools package, which contains ...
Read MoreHow to Install and Configure Nginx on CentOS 7?
Nginx is a popular web server that is known for its high performance, scalability, and low resource usage. It is commonly used as a reverse proxy, load balancer, and HTTP cache. In this article, we will discuss how to install and configure Nginx on CentOS 7. Step 1: Update System Before installing any packages, it's essential to update your system to the latest version. Run the following command − sudo yum update Step 2: Install Nginx Once the system is updated, we can proceed with the installation of Nginx. Install Nginx using the ...
Read MoreHow semaphore is used to implement mutual exclusion?
A semaphore is a shared variable used to implement mutual exclusion between system processes. It helps solve critical section problems and is a fundamental technique to achieve process synchronization by controlling access to shared resources. Types of Semaphores There are two types of semaphores which are as follows − Binary semaphore − Can take only two values, 0 or 1 which means at a time only one process can enter into the critical section. Semaphore is initialized to 1. Counting semaphore − Can take any non-negative value N which means at a time at most N ...
Read MoreHow to Setup Rsyslog Remote Logging on Linux
Every Linux distribution comes with logging systems to record system activities, which helps during system troubleshooting. Rsyslog is an open-source, high-performance logging system available for major Linux distributions including Debian and Red Hat based systems. Compared to the traditional SYSLOG protocol, it offers additional features such as content-based filtering, TCP transport, and extensive configuration options. This article describes how to setup Rsyslog Remote Logging in simple steps. Installation If Rsyslog is not installed on your Linux system, install it using the following command − $ sudo apt-get install rsyslog rsyslog-doc The output should be ...
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