Tcpdump is a network troubleshooting command which is also known as a packet sniffer is used to capture and display packets from a network. tcpdump allows users to capture and display TCP/IP and other packets being transmitted or received over the network to [...]
Linux Commands
16 Tar Commands to Compress and Extract Files in Linux
Tar is a command line tool used to create and manipulate archive files in Linux and Unix systems. Tar can extract from tar, pax, cpio, zip, jar, ar, and ISO 9660 cdrom images and can create respective archives. Below is [...]
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How to Limit Process at User Level on Linux
Ulimit, as the name signifies, is the user resource limits defined by users for their respective processes. It provides control over the resources available to the shell and to processes started by it, on systems that allow such control. That [...]
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How to Upgrade Individual Packages in Ubuntu/CentOS
In this article, we'll dive deep and see how we can upgrade specific packages in Ubuntu/CentOS distributions. Once in a while, you may be required to upgrade certain packages and leave others in their default versions. One reason for this [...]
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How to Create and Remove alias in Linux
Aliases are very useful when it comes to fast working in Linux. We can use alias to run a long or hard remember command with a simple word. There are two types of aliases – temporary and permanent. In this [...]
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Dutree – Command Line Disk Usage Analysis Tool on Linux
DUtree is a combination of Durep and Tree. Durep creates disk usage reports with graphs which allows us to identify which directories are using the most space. Although durep can produce text output similar to du, its real power is the [...]
12:05 am
How to Check Execution Time of a Process in Linux
Have you been wondering how you can find an execution time of a process in Linux or Unix system?. This guide will show you a number of tools which comes in handy when trying to find execution time of a [...]
2:12 am
How to Split Large Text File into Smaller Files in Linux
Linux has several utilities for breaking down large files into small files. Split and csplit are two of the popular commands which are used for this purpose. These utilities will help to break down big log files and even archive [...]
12:05 am
How to Enable or Disable Services in Ubuntu Systemd/Upstart
Often, there is a need to enable or disable services temporarily or permanently on our Ubuntu system. Sometimes, we may require certain services to start up automatically on boot up e.g ssh or web servers and sometimes we may need [...]
12:05 am
netctl - Setup Wifi and Static IP on Arch Linux
This guide will concentrate on how to setup wifi on Arch Linux using netctl command line tool. Netctl is a CLI-based tool used to configure and manage network connections via profiles on Arch Linux. This command should be provided by the base packages [...]
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How to Use Truncate Command in Linux
Welcome to our guide on how to use Truncate Command in Linux. The Linux truncate command is often used to shrink or extend the size of each FILE to the specified size. The final size of the file depends on [...]
12:05 am
2 Ways to Limit CPU Usage of a Process in Linux
While administering your Linux system you need to limit the CPU usage of a process because it can consume more CPU usage and affects the performance of the whole system. This tutorial I will show how you can control CPU time [...]
12:05 am
How to Show Installed Package Size on Ubuntu/Debian
In this guide, I'll take you through the steps to show installed package size on Ubuntu/Debian Linux systems. This can be important when doing space audit trying to find packages using occupying large space on your system. The Ubuntu / [...]
12:05 am
How to Exclude Specific Packages from Yum Update
In this article, we'll show you how to exclude specific packages from updating using Yum package manager. Periodically, you may want to update your CentOS or RHEL system but leave out certain packages especially if the updates are likely to [...]
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