Learning Linux is essential in DevOps for managing cloud-based infrastructure, leveraging its dominant server presence, utilizing key DevOps tools effectively, and mastering automation and scripting within its robust and resource-efficient environment.
- 1How to upgrade Ubuntu to a newer version
- 2What to Do If You Forget Your Ubuntu Password
- 3Understanding the Ubuntu Linux File System Structure: Exploring Root, Home, and More
- 4How to connect to Ubuntu via SSH
- 5Ubuntu: How to create a public/private key pair
- 6Managing users and groups in Ubuntu: The ultimate guide
- 7Ubuntu Mounting Error: Resource Temporarily Unavailable
- 8How to check CPU/RAM/Disk usage in Ubuntu
- 9How to install/upgrade/remove Homebrew on Mac OS
- 10Homebrew: How to List All Installed Packages
- 11Ubuntu: How to Delete a Folder and Its Contents
- 12Homebrew: How to Start/Stop/Restart a Service
- 13Homebrew: How to view all running services
- 14Homebrew: How to install a specific version of a package
- 15Homebrew: How to Check if a Package is Installed
- 16Homebrew: Check for outdated packages and upgrade them
- 17How to Install/Upgrade OpenSSL with Homebrew
- 18Homebrew Error: The brew link step did not complete successfully
- 19Where does Homebrew store its installed packages?
- 20Homebrew: How to Clear the Cache
- 21How to set a custom path for Homebrew
- 22Homebrew: How to Make a Service Auto-Start on System Boot
- 23Homebrew Permission Denied Error: Could not symlink (4 solutions)
- 24Homebrew: How to install a package from GitHub
- 25Homebrew: How to install a package offline (without internet connection)
- 26Homebrew SSL_connect Error: SSL_ERROR_SYSCALL in connection to raw.githubusercontent.com:443
- 27Homebrew & NPM Error: ‘npm’ is not Recognized as an Internal or External Command
- 28Homebrew: Uninstalling a package and its dependencies
- 29Homebrew: How to Change PostgreSQL Configuration File
- 30Homebrew: How to Change MySQL Config File
- 31Homebrew Error – Bootstrap failed: 5: Input/output error
- 32How to Completely Uninstall Homebrew and Remove All Its Files
- 33How to Upgrade CentOS to a Newer Version
- 34How to take a snapshot of a disk in VirtualBox (and restore it later)
- 35Ubuntu: How to create a custom systemd service
- 36Ubuntu: How to create a cron job (that runs repeatedly at a set interval)
- 37Ubuntu: How to diagnose and fix a slow boot time
- 38Ubuntu: How to auto-start a service on system boot
- 39Ubuntu: How to set permissions for a directory and its subdirectories
- 40Ubuntu: How to set up and configure firewall (UFW)
- 41Ubuntu: How to Check if a Port is Currently in Use
- 42How to Install and Configure Redis on Ubuntu 23.04
- 43Ubuntu: How to open/close a port in firewall (UFW)
- 44Ubuntu: How to create a user with sudo privileges
- 45Ubuntu: How to Change the Root Password
- 46Ubuntu: How to find and kill a process that is using a specific port
- 47Ubuntu: How to find a file/directory by name
- 48Ubuntu: Using Wildcards in ‘find’ Command
- 49Soft and Hard Links in Linux: The Ultimate Guide
- 50How to download files using cURL (basic & advanced techniques)
- 51How to set up and configure Ubuntu in Raspberry Pi
- 52How to switch users in Ubuntu
- 53cURL: How to send POST requests and upload files
- 54Ubuntu: How to Lock/Unlock a User Account
- 55cURL: How to Add Headers and Params When Making HTTP Requests
- 56Ubuntu: How to set an expiry date for a user account
- 57cURL: How to Send API key and Auth Credentials in Requests
- 58How to view application log files in Ubuntu
- 59Ubuntu: How to zip/unzip files and directories
- 60Ubuntu: How to edit files with ‘nano’ text editor
- 61Ubuntu: How to write an rsync backup script
- 62How to manage jobs in Ubuntu: A practical guide
- 63Process priority in Linux: Explained with examples
- 64Managing volumes in Ubuntu: The ultimate guide
- 65Ubuntu: How to assign a static IP address to a network interface (2 ways)
- 66How to change OpenSSH config in Ubuntu
- 67Ubuntu: How to Change the Passphrase of an SSH Key
- 68Ubuntu: How to add a DNS server (5 approaches)
- 69How to Stream Files Between Two Ubuntu Machines
- 70Ubuntu: How to add a new PATH entry
- 71Understanding ‘stdin’, ‘stdout’ and ‘stderr’ in Linux
- 72How to Auto-Reboot a Ubuntu Server When Running Out of Resources
- 73Forget Ubuntu root password? Here’s how to reset it
- 74How to lock/unlock a directory in Ubuntu
- 75How to use if-then statement in Bash scripting
- 76How to Use ‘for’ Loop in Bash Scripting
- 77How to use ‘do-while’ loop in Bash scripting
- 78Ubuntu: How to Ping a Remote Server/IP Address
- 79How to check shell history in Ubuntu
- 80Shell Scripting in Ubuntu: The Comprehensive Cheat Sheet