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Linux Tutorials, Guides & How-To’s!

This is our Repository of Linux guides, Tutorials and How-to’s. Many of what you will read in this category is based on issues and projects we’ve dealt with ourselves and needed a place to document our process to refer back to eventually.

If there are any topics that you would like us to cover, send us a message on our Contact Us page and we’ll happily get it in the queue immediately!

How to Set Environment Variables in Linux

Centos Configure Network Settings and Full Setup Tutorial

unzip linux files folders guide and tutorials

mysql list databases and tables commands and syntax

Grep Search Multiple Words or String Patterns

sed replace string in file using regex recursively

linux shutdown command - Learn to halt, reboot and scheduled halts

bash functions - Learn about Declaration, Scope and Arguments

linux screen command tutorial and howto guide!

ubuntu enable ssh - Learn how to Install, Enable & Configure Secure Shell Server

rsync how to transfer locally, remotely and synchronize

How to troubleshoot SSH Connection Refused

ubuntu firewall ufw - How To Configure, Check Status, Open/Close Ports and Enable/Disable

Linux List Users/Members in Group Commands & Syntax

check ubuntu version - 5 different commands and syntax

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Linux Tutorials, Guides & How-To’s!

Ubuntu Change Hostname – (16.04, 18.04 and 19)

WGET- Command, Examples and Tutorial

How to Set Environment Variables in Linux

Configure Proxy On Ubuntu – Settings & Options!

Centos Configure Network Settings – Static, Dynamic (DHCP) IP Addresses & Host Names!

Grep Regex – How to use Regular Expressions in GREP!

Linux Unzip – How To Unzip Files in Linux via Command Line!

SCP Command – How to Use SCP it to Securely Transfer Files (Remote & Local)

Bash Increment & Decrement Variable – Lets Learn how to Use the + & – Operators!

MySQL List Databases – Show All DB’s (and Tables) Command in Linux

Grep Search Multiple Words / String Patterns (Bash Shell)

Linux Copy File Command [ cp Command Examples ]

SED Replace String in File – Use Regex to Recursively Search & Replace in All Files

Recursive Grep Tutorial – Learn to Search Strings/Patterns in Files (or Filenames) within all Directories/Sub-Directories!

Bash Read Line by Line – Several Methods to Output Files without Cat Command!

Linux Shutdown Command – Learn to Halt, Reboot & Scheduled Halts!

Chmod Recursive – Change Permissions Recursively on Files/Folders!

Linux Find File containing Text – How to Use GREP to Find Strings of Text in Files, Folders & Sub-directories!

Bash Functions – Declaration, Scope, Arguments, etc

Linux Screen Command – How-to Create multiple terminal sessions & Share your Screen!

Rsync Exclude – How to Exclude Files, Directories, etc

Ubuntu Enable SSH – Install, Configure & Enable SSH Along with Firewall & Password!

VIM Show Line Numbers Tutorial for Easier Troubleshooting & Debugging!

RSYNC – HowTO Backup & Transfer Files Locally, Remotely & Synchronize!

Bash Case Statement – Learn what the Case Command Does?

Bash Compare Strings – Learn about Equals, Not Equals, Greater than and Less than!

How to Troubleshoot “SSH Connection Refused” when trying to connect to Ubuntu/Linux

Linux List Users Commands & Syntax

Ubuntu Firewall (UFW) – How to Configure, Check Status, Open/Close Ports & Enable/Disable

disown – What is this Command & How to Use it (Syntax, parameters, examples)

Linux List Users/Members in Group Commands & Syntax

Check Ubuntu Versions Commands & Syntax