5 commands you need know about Linux networking

5 useful Linux network...

Important GCC Flags in Linux

You can use GCC flags to extend the functionality of the GCC compiler. Here are some of the common and yet important flags.

tree Command Examples in Linux

The tree command is excellent for viewing the structure of a directory and its subdirectories in Linux. Learn how to use it with practical examples.

Kill Process Running on a Specific Port in Linux

Want to kill the processes running on specific ports? No need to know the process ID or name. You can terminate a process based on the port number it is using.

Using the Make Utility and Makefiles in Linux [Guide]

Learn the basics of makefile and how to use the make utility for building your applications in Linux with a sample C project.

Scan Ports With netcat Command in Linux

Netcat is a popular networking utility for Linux based systems. Learn how to use it to scan for open ports.

How to Create Large Files in Linux

Want to create large file of 1 GB or some other size? Here are various ways of creating large files with predefined sizes in Linux.

error I get when doing sudo apt-get update. Tried other solutions but they didn't work

20 votes, 25 comments. 235K subscribers in the Ubuntu community. The Ubuntu community on Reddit

LINUX Commands

A Mind Map about LINUX Commands submitted by kPastor on Jul 20, 2015. Created with Xmind.

How to Find Open Ports and Close Them in Linux

Troubleshooting networks? Here's how to find the open ports and close those open ports in the Linux command line.

jlevy/the-art-of-command-line: Master the command line, in one page

Master the command line, in one page.

How to Get the UUID of a Disk Partition in Linux

UUID is a property of disk partitions used to uniquely identify them. Here are various ways to get the UUID of a disk partition in the Linux command line.

How to Use the duf Command in Linux

The duf command is a modern utility that combines the features of the du and df commands in a pretty and structured way.

How to activate Bluetooth on Linux

Hey folks !! Many peoples have Bluetooth activation problem with their linux distro after...

What is the Purpose of /etc/hosts File in Linux

The /etc/hosts file is an integral part of the Linux system. But what is it used for?

Using Brace Expansion in Bash Shell

Brace expansion in the bash shell is a lesser known but an awesome feature. Learn about using them like a Pro Linux user with practical examples.

Exclude Files and Directories While Creating Tar File

Don't want all the files in your tarball? Here's how to exclude files and folders while creating tar archive file.

Connect to SSH Server on Alternate Port

Here's a beginner's guide for adding an alternate port to SSH server and the steps for connecting to it.

The Lesser Known Dir Command in Linux

Learn about the dir command, the less known but identical cousin of the popular ls command.

File Locking in Linux

File locking in Linux is the solution by which you can ensure that the file for reading/writing is going to be handled safely.

Shell Script Best Practices — The Sharat's

This article is about a few quick thumb rules I use when writing shell scripts that I’ve come to appreciate over the years. Very opinionated....

SadServers - Linux & DevOps Troubleshooting Interviews

Linux Troubleshooting Interview DevOps SRE

How to use SIGINT and other Termination Signals in Linux

Terminating executing process is more than just kill -9. Here are some of the prominent termination signals and their usage.

Improve Linux system performance with noatime | Opensource.com

Whenever I upgrade Linux on my home computer, I have a list of tasks I usually do.

How fstab works - introduction to the /etc/fstab file on Linux - Linux Tuto

The file is one of the most important files in a Linux-based system, since it stores static information about filesystems, their mountpoints and mount options. In this tutorial we will learn to know…

6 Different Ways to List Disks in Linux Command Line

This detailed guide will give you enough information to start using Emacs, and enough extra to make you want more.

Linux 6.0 Arrives With Support For Newer Chips, Core Fixes, and Oddities

How to Print Environment Variables in Linux

Wondering what environment variables are set on your current shell? Learn how to print environment variables in Linux.

Everything You Important You Should Know About the known_hosts file in Linu

There is a known_hosts file in the .ssh directory and it is an integral part of the SSH mechanism. Learn more about it.

How to count all files in a directory in Linux

To count all files in a directory in linux, simply cd to that directory and then run the following...

How to Follow Symbolic Links

You got a symbolic link and wondering about the actual source file? Here's how to follow symlinks in Linux.

How to Know if You Are Using Systemd or Some Other Init in Linux

Is your Linux system using systemd or sysv or some other init system? Here's how to find out.

Linux On The Laptop Works So Damn Well That It’s Boring | by Clive Thompson

Which is good! Boring = success

How to Change IP Address in Linux

Learn different ways of changing the IP address in Linux. Also learn how to make the changes [ermanent.

Get Absolute File Path in Linux

Here are different ways to get the absolute file paths in Linux command line.

Common Networking Port Numbers in Linux

Here are the common networking ports you'll encounter in Linux.

How to Search in Less Command

The less command is excellent for reading large text files. It also allows you to search for text in it. Here's what you need to know about searching in less.

Using ifup, ifdown, and ifquery commands in Linux

The ifup, ifpdown and ifquery are parts of the same package and help you troubleshoot the network interfaces in Linux.

SSH tips and tricks | Carlos Becker

Since I joined Charm, I’ve been working and learning more about SSH, and I thought I would share a few quick tips and tricks with you. Forward Yubikey Agent If you use a Yubikey (you should), you can use it in your remotes by having the key in a SSH agent and forwarding it. To…

Find Files Modified in Last N Minutes in Linux

Finding recently modified files is a helpful parameter when troubleshooting your code or server. Learn how to find modified files in Linux command line.

Unlink Command in Linux

Learn about the unlink command, an alternate method of deleting files in the Linux terminal.

How to convert JSON to CSV using Linux / Unix shell - nixCraft

This page explains how to convert JSON to CSV format using Linux, macOS, *BSD or Unix command-line utilities.

Small, Sharp Tools

A few words on the Unix philosophy of building small programs that do one thing well, and compose for comprehensive functionality.

How to Use the find Command With exec

Find works on searching files based on a number of criteria. The exec command gives you the ability to work on those results. Here are some examples of find exec command combination.

50+ super useful Linux Commands

✧ Beginner to Pro, for everyone ✧ ↓ — Swapna Kumar Panda (@swapnakpanda)

13 must-know SSH Commands

A list of popular SSH commands for SSH connections, key generation & SSH agents that I'm using on a daily basis.

Making the Most of man pages in Linux

Though extremely useful, man pages in Linux can be daunting and intimidating at first. This article aims to make it a bit easier to peruse manuals and quickly get the help one needs.

The Linux Kernel documentation — The Linux Kernel documentation

How to make a Symbolic Link on Linux

Symbolic links are a link on Linux systems which point another file or folder. It means that...

After GRUB appears I see ACPI BIOS ERROR messages before Ubuntu 20.04 starts normally. How do I solve the problem?

I've installed Ubuntu 20.04 on a Lenovo Ideapad 330 as single operating system. In normal boot on my laptop, after choosing the operating system at the GRUB menu it shows some ACPI BIOS ERROR and o...