Mani Kaku’s Post

𝐃𝐚𝐲 𝟐𝟗 = 𝐋𝐢𝐧𝐮𝐱 𝐒𝐞𝐫𝐢𝐞𝐬 = 𝐌𝐚𝐬𝐭𝐞𝐫 𝐋𝐢𝐧𝐮𝐱: 𝐔𝐧𝐝𝐞𝐫𝐬𝐭𝐚𝐧𝐝𝐢𝐧𝐠 𝐒𝐨𝐟𝐭 𝐋𝐢𝐧𝐤𝐬 𝐢𝐧 𝟔𝟎 𝐒𝐞𝐜𝐨𝐧𝐝𝐬! Ever wondered how to create shortcuts in Linux for those deeply nested files? 👉 Command: Use ln -s [target] [link_name] to create a link. 👉 The "Shortcut" Metaphor: Unlike hard links, a soft link is just a pointer. If the original file is gone, the link breaks. 👉 Efficiency: Perfect for simplifying long file paths. Instead of typing /temp/projects/logs/app.log, just link it to app_log and save time! Check out the full explanation here: 🔗 https://lnkd.in/guaPK9iE #Linux #DevOps #CodingTips #TechEducation #LinuxCommands #SoftLinks #Programming

The Terminal is your best friend. 💻 GUIs are great for everyday tasks, but the Command Line gives you raw, unfiltered power over your machine. Learning basic bash commands (grep, awk, sed, chmod) will speed up your workflow exponentially. Don't be afraid of the black screen with the blinking cursor. #Linux #Bash #DeveloperProductivity #Commandline

One Linux command I wish I'd learned earlier: $ ctrl + r It searches your entire command history instantly. No more pressing ↑ 40 times. Save this. You'll use it tomorrow. #Linux #SysAdmin #DevOps #TechLearning #LinuxTips #Bash #ShellScripting #Programming #LearnLinux

Most people use Linux. Few truly understand it. I used Linux for 3 years before I realized I was just copying commands from Stack Overflow. Then one question changed everything: "What actually happens when you type ls and press Enter?" 5 things that separated me from Linux beginners: 1. Everything is a file — even your keyboard /dev/input/event0 is reading your keystrokes right now. 2. Processes are trees, not lists PID 1 (systemd/init) is the parent of everything on your system. 3. Permissions are 3 numbers, not mystery chmod 755 = owner rwx | group r-x | world r-x. Decode it once, use forever. 4. Pipes | are the most powerful operator you own ps aux | grep python | awk '{print $2}' — that's 3 tools in one line. 5. man is the best teacher — not Google man curl has 3,000+ lines. Most engineers have read 0. Linux isn't an OS. It's a philosophy — do one thing, do it well. ♻ Repost if Linux changed how you think about computers. #Linux #DevOps #OpenSource #SoftwareEngineering #Tech

𝐃𝐚𝐲 𝟑𝟏= 𝐋𝐢𝐧𝐮𝐱 𝐒𝐞𝐫𝐢𝐞𝐬 = 𝐌𝐚𝐬𝐭𝐞𝐫 𝐋𝐢𝐧𝐮𝐱 𝐔𝐧𝐭𝐚𝐫 𝐂𝐨𝐦𝐦𝐚𝐧𝐝𝐬 𝐋𝐢𝐤𝐞 𝐚 𝐏𝐫𝐨 Are you still extracting files the old-fashioned way? In my latest video, I break down how to efficiently handle .tar files using the command line. What you'll learn: ✅ How to use tar -xvf to extract files in the current directory. ✅ The "shorthand" for extracting and moving files to a different folder simultaneously using the. ✅ Speeding up your Linux workflow with simple, repeatable commands. Check out the full short here: https://lnkd.in/gaJetzpJ #Linux #DevOps #Programming #TechTips #LinuxCommands #SoftwareEngineering #SysAdmin

One of the most useful Linux concepts for beginners is understanding the 3 standard streams: ▪️ stdin for input ▪️ stdout for normal output ▪️ stderr for errors Once this clicks, redirection and pipes make a lot more sense. I made this one-image cheat sheet to simplify it. #linux #DevOps #cli #terminal #programming #OpenSource

𝗠𝗼𝘀𝘁 𝗟𝗶𝗻𝘂𝘅 𝗶𝘀𝘀𝘂𝗲𝘀 𝗮𝗿𝗲 𝗻𝗼𝘁 𝗮𝗯𝗼𝘂𝘁 𝗰𝗼𝗺𝗺𝗮𝗻𝗱𝘀. 𝗧𝗵𝗲𝘆 𝗮𝗿𝗲 𝗮𝗯𝗼𝘂𝘁 𝗲𝗻𝘃𝗶𝗿𝗼𝗻𝗺𝗲𝗻𝘁. Variables like PATH, LD_PRELOAD, and HISTCONTROL quietly control how your system behaves, what gets executed, and even what gets logged. This layer is often ignored until something breaks. In production, that usually means debugging blind. Understanding these variables is not optional if you manage Linux systems at scale. Which one has caused you the most trouble? #linux #sysadmin #devops #linuxcommands #cheatsheet #linuxadmin #terminal #opensource #programming #linux2026

𝗦𝗲𝗲𝗶𝗻𝗴 𝟵𝟬–𝟵𝟵% 𝗥𝗔𝗠 𝘂𝘀𝗮𝗴𝗲 𝗶𝗻 𝗟𝗶𝗻𝘂𝘅? That’s usually normal. Linux uses memory for cache, not just applications. Understand: • Page cache • Swap behavior • OOM killer • Real vs fake memory pressure  #linux #devops #sysadmin #programming #opensource #LinuxTeck

🐧 Linux From Scratch 13.0-systemd is Now Available Ever wanted to understand Linux from the ground up? Linux From Scratch (LFS) is the project that lets you build your own Linux system by compiling every package from source code. Version 13.0-systemd, released on March 5th, 2026, brings significant updates: 🔧 GCC 15.2.0 and Glibc 2.43 as the toolchain foundation 🐍 Python 3.14.3 and OpenSSL 3.6.1 (with security fixes) 🐧 Linux Kernel 6.18.10 📦 Over 80 packages updated in total This version is dedicated to Ken Moffat, editor of the project for 25 years, who passed away in June 2025. A well-deserved tribute to someone who devoted decades to the open-source community. Why Build Your Own Linux? ✅ Learn how an operating system works from the inside out ✅ Complete control over every component ✅ Minimal and optimized system tailored to your needs ✅ Full security audit of your entire system LFS isn't for everyone, but if you're a sysadmin, developer, or simply curious about the Linux world, it's an experience that transforms your understanding of the operating system. #Linux #OpenSource #LinuxFromScratch #SysAdmin #DevOps #Programming #LFS #OperatingSystems #TechCommunity #GNU #SoftwareDevelopment #SystemAdministration

I needed speech-to-text on Linux. The options were: ❌ Cloud-based (privacy concern) ❌ GUI apps (I use i3 tiling WM, no floating windows) ❌ Fixed recording duration (awkward to use) ❌ GPU-locked (I need my GPU for ML training) So I built Voxd — a daemon-based, local-only dictation tool. How it works: 1. Background daemon loads Whisper model on first use 2. Hotkey triggers recording via Unix socket 3. WebRTC VAD detects when you stop speaking 4. faster-whisper transcribes locally on CPU 5. xdotool types the result into your focused window The entire thing is two files: a Python daemon and a bash trigger script. Shipped it, open-sourced it. GitHub: https://lnkd.in/dkUcPkDv #OpenSource #Linux #AI #SpeechToText #BuildInPublic