Software

What is the first thing to know about software with Linux?

Well, quite simply, software with Linux derives from either command prompt or more typically and widely used, software that you point and click with in a GUI (Graphical User Interface) format.

If you are new to Linux, moving from Windows or macOS or simply don't know what a command prompt is - you will want to use the Graphical User Interface running either GNOME or KDE.

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    In the world of Linux, understanding what's happening at the file system level can be crucial for system administration, debugging, and performance monitoring. One of the powerful tools that makes this possible is fatrace. It reports file access events from all running processes, giving you a comprehensive overview of which processes are reading from or writing to your files. fatrace stands for "File Access Trace." It taps into the power of the Linux fanotify API to monitor file system events. With fatrace, you can track which files are opened, read, written, or closed. This tool is incredibly useful for system admins, developers testing applications, or simply for educational purposes to understand system behavior.
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    In the realm of server management and maintenance, knowing the uptime of your system can be quite enlightening. It helps administrators gauge system reliability, schedule maintenance, and boast about the server's stability and robustness. Linux, renowned for its stability, often sees systems with months or even years of uptime. For those interested in tracking and managing this uptime straight from the command line, uptimed is an essential tool to consider. uptimed is an open-source utility that runs as a background daemon on Linux systems to track the system's uptime history. It records system uptimes, and through its command uprecords, one can view a leaderboard of uptime records.
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    If you're managing or debugging Linux servers, particularly in environments heavily reliant on disk operations like database servers or file servers, monitoring Disk Input/Output (I/O) stats is crucial. An effective tool to help you in this endeavor is iotstat. This utility can provide real-time detailed information about disk I/O by each device, aiding in performance tuning and troubleshooting. In this blog post, I'll introduce you to iotstat, explain its benefits, and guide you through installation via different Linux package managers — namely, apt (for Debian-based distributions), dnf (for Fedora and other RHEL-based distributions), and zypper (for openSUSE/SUSE).
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    As Linux systems grow increasingly prevalent across servers, desktops, and notably laptops, managing power consumption becomes crucial, especially for mobile users. One outstanding tool in the Linux arsenal for analyzing and optimizing power usage is Powertop. Created by Intel, Powertop helps users identify software and system processes that consume excessive power, enabling tweaks that extend battery life and reduce energy use. In this article, we'll explore how Powertop functions, and provide step-by-step instructions on how to install it using different package managers like apt, dnf, and zypper. Powertop is a diagnostic tool that provides real-time insights into device power usage data.
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    In the bustling world of Linux, where diverse applications and processes run concurrently, managing system resources efficiently becomes crucial. One significant resource that often requires careful monitoring is the CPU. Whether you're a system administrator, a developer, or merely a Linux enthusiast, keeping an eye on CPU utilization can significantly optimise performance and avoid potential bottlenecks. Here, we introduce a powerful tool designed for this purpose: cpustat. cpustat is a lightweight monitoring tool that reports individual CPU utilization for running processes. It is particularly useful for its high-frequency update ability and its straightforward output, which is easy to comprehend at a glance.
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    In the vast ecosystem of Linux, understanding the intricacies of your system's hardware and software can markedly improve how you manage and troubleshoot your environment. That's where inxi, a powerful command-line system information tool for Linux, comes into play. It provides a detailed overview of various system components with clean, easy-to-read output. Whether you're a system administrator, a developer, or just a Linux enthusiast, mastering inxi can significantly enhance your workflow. inxi is a full-featured CLI tool that helps users obtain details about their system hardware (like CPU, GPUs, motherboards, RAM, etc.), drivers, and other key software components.
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    When managing storage on your Linux systems, efficiently tracking your disk usage is vital. Visual tools like the graphical Disk Usage Analyzer (part of the GNOME desktop environment) are helpful, but what if you're managing a server via SSH, or prefer using the terminal? Enter ncdu (NCurses Disk Usage), a lightweight, text-based utility that provides a fast and easy-to-navigate interface to analyze disk usage. In this blog, we’ll explore what makes ncdu special, and provide detailed installation instructions across different Linux distributions. Disk space management might look straightforward — until you're sifting through gigabytes of data trying to figure out what's using up all your storage.
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    In the realm of Linux system administration, effectively managing disk space is crucial. Not only does it help in maintaining the efficiency of a system, but it also ensures that resources are used judaniciously. The du (disk usage) command is an indispensable tool in the Linux toolkit, offering a detailed report on the space consumed by files and directories. This guide will walk you through the basics of using the du command and provide instructions on how to ensure it's available on your Linux system using different package managers. The du command in Linux provides information about the amount of disk space used by files and directories.
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    As you manage your Linux system, one of the essential tasks is keeping an eye on your disk usage to prevent running into a space crunch. The df command (an abbreviation for "disk free") is a powerful utility found in most Unix-like operating systems. It provides a detailed report on the system's disk space usage and is invaluable in managing your filesystems efficiently. Whether you are a system administrator or a regular user, understanding how to use the df command can enhance your system management capabilities. The df command in Linux displays the amount of disk space available on your file system.
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    When working on Linux, understanding what files and sockets are currently open can be crucial, whether you're a system administrator, a security specialist, or a software developer. The lsof command, which stands for "List Open Files," is one of the most powerful and versatile tools in the Linux toolbox. In this article, we'll explore how to install and use lsof to monitor and manage your system's resources effectively. lsof is a unix-like command line utility that provides detailed information about files opened by processes. An "open file" may be a regular file, a directory, a block special file, a character special file, an executing text reference, a library, a stream, or a network file (Internet socket, NFS file or UNIX domain socket.
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    In the vast landscape of Linux commands, having a good understanding of your system's hardware and how it interacts with your operating system is crucial. One of the lesser-known yet incredibly useful tools is lsblk, short for "list block devices". This command allows users to display a comprehensive overview of all available block devices, including disks, partitions, and their mount points. Whether you're a system administrator deciphering server setups or a curious hobbyist exploring a personal Linux system, mastering lsblk can significantly enhance your ability to manage block devices efficiently. The lsblk command in Linux is used to display detailed information about all available block devices on your system.
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    When it comes to maintaining and troubleshooting Linux systems, understanding the kernel's messages is crucial. Whether you're a system administrator, a developer, or a curious Linux enthusiast, having the ability to view and comprehend these messages can be incredibly beneficial. That’s where dmesg, a powerful command-line tool, comes into play. This blog will dive into what dmesg is, why it's useful, and how you can install and utilize it on different Linux distributions. dmesg is a command on Linux that stands for "diagnostic messages".
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    In the world of Linux, monitoring system performance is crucial, especially when managing server environments or diagnosing network issues. One of the essential metrics to keep an eye on is network bandwidth. Understanding your system's bandwidth usage can help you better manage network load and diagnose performance bottlenecks. This is where bmon (Bandwidth Monitor) comes into play. This tool is not only lightweight but also powerful enough to provide real-time bandwidth monitoring and statistics. Bmon is a command-line based tool that allows users to monitor and debug networking-related issues. It provides a dynamic interface, showing real-time statistics about the network interfaces on your system.
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    For system administrators and power users, monitoring system resources is crucial for diagnosing performance issues and ensuring that everything runs smoothly. While there are several tools available for monitoring different aspects of system performance, iotop focuses specifically on input/output operations—making it a must-have tool in your system monitoring arsenal. Here’s how to install and use iotop to keep track of I/O usage by processes on your Linux machine. iotop, or input/output top, is a Python program that provides a convenient and clear interface for monitoring disk I/O usage by processes. It is similar in design to the popular top utility but is specialized for disk operations.
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    In the world of Linux, performance optimization and analysis is a critical skill. Fortunately for system administrators and developers, Linux offers powerful tools for monitoring and analyzing system performance. One such tool is perf, a versatile performance counter toolkit. perf provides a robust framework for tracing Linux system and application performance with access to a wide range of hardware performance counters. perf, also known as perf_events, is a performance analyzing tool in Linux, available by default in the Linux kernel. It allows you to analyze performance related to software and hardware, helping you identify bottlenecks that require optimization.
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    Linux administrators and power users often require detailed insight into system performance and resource usage to manage servers effectively. While there are several tools available for this purpose, such as top and htop, atop has emerged as a powerful alternative that provides extensive visibility over system resources. Atop is an advanced monitor tool that can track a variety of system performance metrics - including CPU, memory, disk, and network usage. It differs from other monitoring tools by providing a detailed view that covers all aspects of server performance, and it retains historical data to help analyze the load over a period of time.
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    In the realm of network administration, monitoring your connection's data usage is crucial, whether you're managing a busy server or simply keeping track of your personal internet usage. vnStat is a lightweight, command-line-based tool that offers real-time monitoring and data logging of network traffic for various interfaces. The beauty of this tool lies in its simplicity and the powerful insights it provides without needing elevated privileges to run. This blog post provides a comprehensive guide on how to install vnStat across various Linux distributions using different package managers like apt, dnf, and zypper. We’ll also cover the basics of starting to monitor your network traffic.
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    As network administrators or just curious users, it’s vital to keep an eye on the bandwidth usage to ensure efficient network operations. Whether you're troubleshooting a slow network or ensuring no unauthorized traffic is consuming your bandwidth, knowing what's happening on your network interface is essential. This is where iftop becomes an indispensable tool. iftop is a real-time console-based network bandwidth monitoring tool, perfect for visualizing network traffic as it shows a list of network connections from or to your system. In this blog, we'll explore how to install and use iftop on various Linux distributions using apt, dnf, and zypper package managers, and provide a quick guide on how to interpret the data it presents.
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    In the vast toolbox available for network administrators and enthusiasts on Linux, one particularly useful and user-friendly tool is nload. Nload offers a real-time visualization of incoming and outgoing network traffic through simple yet powerful ASCII graphical charts. If you’re dealing with network management and troubleshooting, being able to visually monitor your network traffic on the fly is invaluable, and nload brings this functionality directly to your terminal. Let’s dive into what nload is, and how you can install and use it across different Linux distributions. Nload is a console application that allows users to monitor network traffic and bandwidth usage in real time.
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    In the landscape of Linux system administration, monitoring system resources is crucial for maintaining performance and stability. One of the fundamental metrics to keep an eye on is memory usage. The free command is a built-in utility in most Linux distributions that provides a quick and clear snapshot of the system's memory usage including total, used, free, shared, buffers, and cache memory. Here’s a comprehensive guide on how to utilize the free command effectively along with installation instructions for different package managers where necessary. The free command displays the amount of free and used memory in the system. This includes physical memory and swap space, as well as the buffers and caches used by the kernel.
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    In the world of Linux, efficiency and automation are not just beneficial; they're a way of life. One of the less celebrated but incredibly powerful tools in the Linux arsenal is the watch command. This simple yet robust utility allows you to run other commands at regular intervals, thus automating the continuous monitoring of files, processes, or any other tasks that change over time. Let's explore how you can leverage watch to supercharge your productivity, along with how to install it on various Linux distributions. The watch command in Linux is used primarily for running a program periodically, showing output in fullscreen.
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    In the bustling world of Linux servers and desktops, managing system resources efficiently is crucial for maintaining performance and stability. Tools that help in this regard are essential for any system administrator’s toolkit. One such powerful utility is pidstat, part of the sysstat package, designed to collect and display statistics about processes and threads running on a Linux system. pidstat is a versatile command-line utility that reports statistics of your system's processes. It can show you various details about running processes, such as CPU, memory, I/O usage, and more, over different time intervals and output formats.
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    The Linux operating system is renowned for its stability and versatility, especially in handling multiple processes efficiently. Whether you're a system administrator, a developer, or simply an enthusiast eager to understand the internal workings of your Linux system, one tool you'll find indispensable is 'top'. In this blog, we will explore what 'top' is, its key features, and how you can install it using various package managers like apt, dnf, and zypper. The top command in Linux is a powerful task manager that provides a dynamic real-time view of a running system. It can display system summary information, as well as a list of tasks currently managed by the Linux kernel.
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    Monitoring running processes is a fundamental task in managing Linux systems. Whether you're a system administrator tracking the performance of servers, a developer debugging an application, or just curious about what's running on your machine, the ps command is an essential tool in any Linux user's arsenal. In this blog post, we'll explore how to use ps to view currently running processes and guide you through installing it on various Linux distributions using different package managers. ps stands for "Process Status." It is used in Unix-like operating systems to display information about active processes on a system. This command can show a snapshot of processes running at the moment you run the command.
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    If you're managing a Linux-based system, whether it's a personal computer or a server, knowing how to check its performance and uptime is crucial. Among the various tools available, the uptime command is a straightforward yet powerful utility that provides essential information about your system's operation time and load averages. This guide will help you understand how to use uptime and install it on different Linux distributions using various package managers. The uptime command is used to find out how long the system has been running since its last startup. Moreover, it shows the current time, the number of users currently logged into the system, and the system load averages.