Linux for Cloud Engineers and Devops

Upload a file from Windows to an Ubuntu instance via SCP, then view it with nano, cat, head, tail, more, and less.

Learn essential Linux navigation: use ls, cd, and pwd to explore root, home, and Ubuntu directories, switch users, and prepare for creating, copying, and moving files.

Learn to create and delete files in Linux using touch, nano, cat, and rm, including saving with nano and deleting multiple files.

Learn practical file management with mkdir, cp, mv, and rm as you create directories, copy and move files, and rename folders and files in linux.

Create folders with mkdir, delete empty ones with rmdir, remove non-empty directories with rm -r, navigate with cd and cd - and create files with touch while using pwd.

Create a new user John, add him to the sudo group, and verify sudo access with sudo apt update; then delete John with sudo and user dl.

Learn how to create a new group with sudo groupadd, add a new user with adduser, and add the user to groups including sudo, verifying memberships with groups.

Learn how to use grep to search text in files and directories, perform case-insensitive matches, and combine ls with grep via pipes to locate files and folders.

Explore find to locate files by name across directories, and the file command to identify file types, while practicing mkdir and cd for creating and navigating folders.

Learn how to change file ownership using the chown command, switching from root to ubuntu with sudo, and understand how ownership affects command execution.

Learn how Linux file permissions work, including read, write, and execute for user, group, and others, and practice changing them with chmod using symbolic and numeric forms.

Explore nano basics for editing Linux files, including finding words, going to lines, undoing and redoing, saving with Ctrl o, and exiting with Ctrl x, plus vi tips for quitting.

Configure the linux firewall with ufw by enabling, disabling, and checking status; manage rules for ssh, http, specific ip or subnet, and default outgoing allow with default incoming deny.

Learn to install nginx and MySQL on Linux and manage services with systemctl to start, restart, and stop nginx and MySQL efficiently.

Install zip, then zip a file to create new.zip. Unzip the archive with unzip and use -d to extract into a directory.

Learn to back up files with rclone to AWS S3 and other providers, configure remote connections, and schedule automated backups using crontab to run copy or sync commands.

Back up a MySQL database with mysqldump, zip the dump with a date-based filename, and automate daily backups using a shell script and cron with 15-day cleanup.

Learn the ps command to view all user processes (with -e) and details (with -f), kill by pid, and monitor real time cpu and memory with top.

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