Learn Linux with Dan

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Most popular Linux-related GitHub projects

Here are updated top-20 Linux related opensource projects hosted at GitHub. Popularity is based on a combination of # stars and # forks

Tell me if I left something out 😎👆

#techfind #github #opensource #softwaredeveloper

Find a high-res pdf book with all my #linux related infographics from https://study-notes.org/linux-ebook.html

2025/9/23 Edited to

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A Linux I/O Redirection cheat sheet created by Dan Nanni, detailing various shell commands for redirecting, appending, and combining standard input, output, and error streams. It includes examples like `cmd < file`, `cmd > file`, `cmd 2> file`, `cmd > file 2>&1`, and `cmd <<< "string"` with their corresponding descriptions.

Linux I/O redirection cheat sheet

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Different ways to remove files on Linux

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Understanding Linux signals

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A Linux watch command cheatsheet created by Dan Nanni, listing various commands to monitor system metrics in real-time. Examples include tracking CPU/memory usage, disk space, log file growth, network activity, and system errors, with refresh intervals specified.

Linux watch command cheatsheet

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This image displays "Useful Linux Cron Examples," a comprehensive list of cron job schedules. It shows various cron expressions with corresponding commands and descriptions for tasks like running every minute, hourly, daily, weekly, monthly, yearly, at system startup, and more, created by Dan Nanni.

Useful Linux cron examples

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Best tool for group / collaborative projects! 🍋

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Linux command chaining

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This image displays a comprehensive list of useful Wireshark filter examples. It includes filters for IP addresses, ports, protocols like TCP, UDP, HTTP, DNS, TLS, DHCP, and packet properties such as length and content. The infographic was created by Dan Nanni from study-notes.org.

Useful Wireshark filter examples

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This infographic illustrates different types of ping methods, including ICMP, TCP, UDP, ARP, and HTTP. For each type, it shows the request and reply protocols, along with common Linux tools used for each ping method, such as ping, tcping, nping, arping, and httping.

Different types of ping

In networking, ping is known as a way to test network connectivity and measure RTT between devices. While ping probes typically use ICMP, alternative protocols like TCP or UDP can be used as well Here are different types of ping methods and supported #linux tools 😎👆 #software #TechTips #

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Linux commands for hardware information

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An infographic titled 'Linux Terminal Emulators' displays 24 different terminal applications with their icons and names. It features popular options like Alacritty, Kitty, and Xterm, and is credited to Dan Nanni.

Popular Linux terminal apps

The terminal is where many of us spend the most time on Linux, so picking the right terminal matters more than you might think. From ultra-lightweight options to powerful, feature-packed environments, terminal apps come in many forms, each tailored to different workflows, preferences, and system s

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An infographic titled 'Linux netcat Command Examples' lists various `nc` commands for network tasks like port scanning, file transfer, creating shells, and streaming. It includes commands for TCP/UDP, IPv6, and persistent listeners, credited to Dan Nanni.

Useful netcat command examples

Netcat is the Swiss army knife of networking. It lets you read and write data over TCP or UDP, and infosec folks use it all the time for things like quick port scans, grabbing service banners, or setting up reverse shells. Here are useful netstat command examples 😎👆 Find high-res pdf ebooks w

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A laptop on a wooden desk with a large monitor in the background, displaying the title "Become an AWS DevOps Engineer" and "3 useful tips" for career advice.

A laptop and a scone with a drink on a wooden table in a cafe, illustrating the first tip: "Build a Strong Foundation in AWS Services" by learning core AWS services and DevOps tools.

A desk setup with a laptop, a colorful water bottle, and a phone, presenting the second tip: "Gain Expertise in DevOps Practices and Tools" like CI/CD pipelines and Infrastructure as Code.

How to become an AWS DevOps Engineer - 3 tips

1. Build a Strong Foundation in AWS Services As an AWS DevOps Engineer, you’ll be responsible for designing, deploying, and managing scalable cloud infrastructure. Key Steps: Learn Core AWS Services: Start with foundational services like EC2, S3, IAM, RDS, VPC, and CloudFormation. Master De

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A Linux Cheatsheet for Engineers from @thealpha.dev, listing various commands categorized into File System Operations, File Permissions, Process Management, Networking, System Information, Package Management, Shell Scripting, User and Group Management, File Transfer, and System Services. A penguin on a skateboard is at the bottom.

Linux cheat sheet✨️

Where are my tech babes at?👩🏿‍💻 This is something I'm learning in school😍 It's been super fun typing things into the command line and actually getting a response🥹💕💕💕 One of my classmates shared this cheat sheet to make using Linux easier #imdoingsomethingright #CybersecurityAwarenessMon

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An infographic titled 'Linux Security Hardening' by Dan Nanni, listing essential commands for system upgrades, user and SSH security, firewall setup, file permission checks, service management, port monitoring, USB device control, legacy service checks, and security auditing tools.

Linux system hardening commands

Securing a system against threats requires reducing vulnerabilities, tightening access, and disabling unnecessary services. Here are useful Linux commands for that 😎👆 #linux #softwaredeveloper #TechTips #upskill Find high-res pdf books with all my #cybersecurity related infographics

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Linux netcat command examples

The netcat command lets you read from and write to network connections using TCP or UDP. Its flexibility makes it a must-have for infosec professionals, who use it for tasks such as port scanning, banner grabbing, and setting up reverse shells during penetration tests. Here are useful netstat co

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Career tips for computer science majors

1. Build a Strong Portfolio - Work on projects that demonstrate your skills, such as web apps, mobile apps, or machine learning models. Host them on GitHub or a personal website. 2. Master the Fundamentals - Focus on core CS concepts like data structures, algorithms, and object-orien

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An infographic titled 'Linux FUSE-based Filesystems' categorizes various filesystems. Categories include Remote and Cloud, Archive and Image, Encrypted and Secure, Legacy and Compatibility, and Special-Purpose and Experimental filesystems, with examples for each. The infographic was created by Dan Nanni from study-notes.org.

Useful Linux FUSE filesystems

A FUSE filesystem is a user-space filesystem built on top of the Filesystem in Userspace (FUSE) kernel module, allowing developers to implement custom storage logic without writing kernel code Here are a categorized list of Linux FUSE filesystems 😎👆 #softwareengineer #computerscience #TechT

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A woman walks in front of a grand cathedral, with the title 'How to Use AI to Succeed in Your Tech Career' overlaid.

A scenic view of a coastal town with white buildings and blue sea, featuring text on automating repetitive tasks with AI tools like GitHub Copilot and Zapier.

A coastal view with white buildings and a balcony, displaying text about upskilling with AI-powered platforms like Coursera, Udemy, HackerRank, and LeetCode.

Use AI to Succeed in Your Tech Career

1. Automate Repetitive Tasks - Why It Matters: Free up time for creative problem-solving and higher-value work. - How to Do It: - Use GitHub Copilot or Tabnine to auto-complete code and suggest improvements while coding. - Automate workflows with tools like Zapier or Make (formerly Integromat

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Popular CVE vulnerability scanners

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Linux user management commands

Even on a single-user Linux system, having multiple user accounts is important for separating administrative tasks, securely running background services, and safely experimenting without affecting your main environment Here are essential Linux commands for user management 😎👆 #devops #softwar

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A desk setup with a laptop displaying a calendar app, a monitor, and a lamp. The image has an overlay text 'Calendar Apps to Kickstart a Productive New Year!'.

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A screenshot of the Morgen Calendar & Task Manager app, featuring a dark mode weekly calendar with tasks and events, and a task list sidebar. Text highlights it as an all-in-one calendar and task manager.

Calendar Apps to Kickstart a Productive New Year!

Start your new year on the right note with these amazing calendar apps! From organizing tasks to time-blocking and seamless scheduling, these tools make planning your day a breeze. Whether it’s managing projects, syncing calendars, or staying focused on what matters, these apps are here to

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An infographic titled 'Linux /proc Filesystem' by Dan Nanni, featuring the Linux penguin mascot. It lists numerous /proc entries like /proc/cpuinfo, /proc/meminfo, and /proc/[PID]/status, detailing the system information each provides, such as CPU, memory, and process statistics.

Linux /proc filesystem

The Linux /proc filesystem is a virtual interface that exposes live system information and kernel parameters, enabling users to monitor hardware and processes and adjust kernel settings at runtime Here are a list of useful /proc entries 😎👆 #software #softwaredeveloper #computer Find

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This image displays a comprehensive list of Tcpdump command examples for network traffic analysis on Linux. It covers various functionalities like capturing, filtering by interface, protocol, IP, port, and subnet, saving to files, displaying detailed packet information, and advanced filtering using TCP flags and VLANs.

Tcpdump command examples

Tcpdump is a powerful command-line tool for capturing and analyzing network traffic on Linux. This tool is essential for cybersecurity pros and sysadmins to troubleshoot issues, inspect protocols, and detect suspicious activity Here are useful tcpdump command examples 😎👆 #technology #softwar

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Student Teaching Series: What to bring to student teaching!! Please let me know if you guys have ANY questions and I will do my best to make videos over the next couple weeks for you. I’m an open book and would LOVE to pass on anything I’ve learned. ☺️ #teachersoftiktok #middleschoolteacher

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