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Pablo J RY

@Sthon12

SRE Jr. Enthusiast for HPC and Low-cost Post-Moore device
Colombia
Joined September 2019
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Dhanian πŸ—―οΈ Verified account @e_opore
Linux Roadmap 1. Linux Fundamentals - What is Linux? - Linux distributions - File system hierarchy 2. Install Linux - Choose a distro - Install on a VM or dual boot - Basic system setup 3. Master the Terminal - Bash shell - Navigation commands - File and directory management 4. File Permissions - Users and groups - chmod, chown, chgrp - Permission management 5. Text Processing - cat, less, head, tail - grep, sed, awk - find and locate 6. Process Management - ps, top, htop - kill and nice - Background and foreground jobs 7. Package Management - apt, dnf, yum, pacman - Installing and updating software - Managing repositories 8. Shell Scripting - Variables - Loops and conditions - Functions and automation 9. Networking - IP addresses - SSH - Ping, curl, wget - Network troubleshooting 10. System Administration - Services with systemd - Cron jobs - Disk and memory management - Log files 11. Security - Firewalls - SSH hardening - User authentication - File encryption 12. Real-World Projects - Host a web server - Automate backups - Build a home server - Deploy applications with Docker Grab Linux Ebook: https://t.co/DeHjJ1X20N
e_opore's tweet photo. Linux Roadmap 1. Linux Fundamentals - What is Linux? - Linux distributions - File system hierarchy 2. Install Linux - Choose a distro - Install on a VM or dual boot - Basic system setup 3. Master the Terminal - Bash shell - Navigation commands - File and directory management 4. File Permissions - Users and groups - chmod, chown, chgrp - Permission management 5. Text Processing - cat, less, head, tail - grep, sed, awk - find and locate 6. Process Management - ps, top, htop - kill and nice - Background and foreground jobs 7. Package Management - apt, dnf, yum, pacman - Installing and updating software - Managing repositories 8. Shell Scripting - Variables - Loops and conditions - Functions and automation 9. Networking - IP addresses - SSH - Ping, curl, wget - Network troubleshooting 10. System Administration - Services with systemd - Cron jobs - Disk and memory management - Log files 11. Security - Firewalls - SSH hardening - User authentication - File encryption 12. Real-World Projects - Host a web server - Automate backups - Build a home server - Deploy applications with Docker Grab Linux Ebook: https://t.co/DeHjJ1X20N
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Ayaan 🐧 Verified account @twtayaan
A visual guide to how containers really work πŸ“¦
twtayaan's tweet photo. A visual guide to how containers really work πŸ“¦ https://t.co/dyGgtxGYND
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Ayaan 🐧 Verified account @twtayaan
The DevOps tools you'll come across the most πŸ‘‡
twtayaan's tweet photo. The DevOps tools you'll come across the most πŸ‘‡ https://t.co/iTOtfEuPMH
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Dhanian πŸ—―οΈ Verified account @e_opore
100 Concepts for Mastering Docker β†’ Understanding Docker and Containerization β†’ Containers vs. Virtual Machines β†’ Docker Architecture and How Docker Works β†’ Docker Engine Fundamentals β†’ Docker Client and Docker Daemon β†’ Installing and Setting Up Docker β†’ Understanding Docker Images β†’ Understanding Docker Containers β†’ Docker Registries and Repositories β†’ Docker Hub Fundamentals β†’ Pulling Images with docker pull β†’ Running Containers with docker run β†’ Listing Containers with docker ps β†’ Starting and Stopping Docker Containers β†’ Restarting and Pausing Containers β†’ Removing Containers with docker rm β†’ Removing Images with docker rmi β†’ Inspecting Containers with docker inspect β†’ Viewing Container Logs with docker logs β†’ Executing Commands with docker exec β†’ Interactive Containers and Terminal Access β†’ Understanding Docker Image Layers β†’ Docker Image Tags and Versioning β†’ Building Custom Docker Images β†’ Dockerfile Fundamentals β†’ Understanding the FROM Instruction β†’ Using RUN in Dockerfiles β†’ Using COPY and ADD Instructions β†’ Understanding CMD in Docker β†’ Understanding ENTRYPOINT in Docker β†’ CMD vs. ENTRYPOINT β†’ Using WORKDIR in Dockerfiles β†’ Using ENV for Environment Variables β†’ Understanding ARG Build Arguments β†’ Using EXPOSE in Dockerfiles β†’ Dockerfile Best Practices β†’ Understanding Docker Build Context β†’ Building Images with docker build β†’ Docker Build Cache β†’ Multi-Stage Docker Builds β†’ Optimizing Docker Image Size β†’ .dockerignore Files β†’ Container Port Mapping β†’ Publishing Ports with -p β†’ Docker Networking Fundamentals β†’ Bridge Networks in Docker β†’ Host Networking in Docker β†’ None Network Mode β†’ Creating Custom Docker Networks β†’ Container-to-Container Communication β†’ Docker DNS and Service Discovery β†’ Inspecting Docker Networks β†’ Docker Storage Fundamentals β†’ Container Writable Layers β†’ Docker Volumes β†’ Bind Mounts β†’ Volumes vs. Bind Mounts β†’ Creating and Managing Docker Volumes β†’ Sharing Data Between Containers β†’ Persisting Database Data with Docker β†’ Backup and Restore of Docker Volumes β†’ Environment Variables in Containers β†’ Managing Application Configuration β†’ Managing Secrets in Containerized Applications β†’ Docker Compose Fundamentals β†’ Understanding compose.yaml β†’ Defining Services with Docker Compose β†’ Managing Multiple Containers with Compose β†’ Docker Compose Networks β†’ Docker Compose Volumes β†’ Environment Variables in Docker Compose β†’ Service Dependencies with depends_on β†’ Health Checks in Docker Compose β†’ Docker Compose Profiles β†’ Building Images with Docker Compose β†’ Scaling Services with Docker Compose β†’ Docker Container Health Checks β†’ Resource Limits for Containers β†’ CPU and Memory Management β†’ Container Restart Policies β†’ Docker Security Fundamentals β†’ Running Containers as Non-Root Users β†’ Docker Linux Capabilities β†’ Seccomp Profiles in Docker β†’ Read-Only Container Filesystems β†’ Docker Image Security Scanning β†’ Minimizing Container Attack Surfaces β†’ Docker Registry Authentication β†’ Private Docker Registries β†’ Tagging and Pushing Docker Images β†’ Docker in CI/CD Pipelines β†’ Automated Docker Image Builds β†’ Docker with GitHub Actions β†’ Containerizing Backend Applications β†’ Containerizing Frontend Applications β†’ Containerizing Databases β†’ Docker Logging and Monitoring β†’ Debugging Docker Containers β†’ Docker Performance Optimization β†’ Docker in Production Environments β†’ Docker and Kubernetes Integration Grab Docker Mastery Handbook: https://t.co/DLllv30suF
e_opore's tweet photo. 100 Concepts for Mastering Docker β†’ Understanding Docker and Containerization β†’ Containers vs. Virtual Machines β†’ Docker Architecture and How Docker Works β†’ Docker Engine Fundamentals β†’ Docker Client and Docker Daemon β†’ Installing and Setting Up Docker β†’ Understanding Docker Images β†’ Understanding Docker Containers β†’ Docker Registries and Repositories β†’ Docker Hub Fundamentals β†’ Pulling Images with docker pull β†’ Running Containers with docker run β†’ Listing Containers with docker ps β†’ Starting and Stopping Docker Containers β†’ Restarting and Pausing Containers β†’ Removing Containers with docker rm β†’ Removing Images with docker rmi β†’ Inspecting Containers with docker inspect β†’ Viewing Container Logs with docker logs β†’ Executing Commands with docker exec β†’ Interactive Containers and Terminal Access β†’ Understanding Docker Image Layers β†’ Docker Image Tags and Versioning β†’ Building Custom Docker Images β†’ Dockerfile Fundamentals β†’ Understanding the FROM Instruction β†’ Using RUN in Dockerfiles β†’ Using COPY and ADD Instructions β†’ Understanding CMD in Docker β†’ Understanding ENTRYPOINT in Docker β†’ CMD vs. ENTRYPOINT β†’ Using WORKDIR in Dockerfiles β†’ Using ENV for Environment Variables β†’ Understanding ARG Build Arguments β†’ Using EXPOSE in Dockerfiles β†’ Dockerfile Best Practices β†’ Understanding Docker Build Context β†’ Building Images with docker build β†’ Docker Build Cache β†’ Multi-Stage Docker Builds β†’ Optimizing Docker Image Size β†’ .dockerignore Files β†’ Container Port Mapping β†’ Publishing Ports with -p β†’ Docker Networking Fundamentals β†’ Bridge Networks in Docker β†’ Host Networking in Docker β†’ None Network Mode β†’ Creating Custom Docker Networks β†’ Container-to-Container Communication β†’ Docker DNS and Service Discovery β†’ Inspecting Docker Networks β†’ Docker Storage Fundamentals β†’ Container Writable Layers β†’ Docker Volumes β†’ Bind Mounts β†’ Volumes vs. Bind Mounts β†’ Creating and Managing Docker Volumes β†’ Sharing Data Between Containers β†’ Persisting Database Data with Docker β†’ Backup and Restore of Docker Volumes β†’ Environment Variables in Containers β†’ Managing Application Configuration β†’ Managing Secrets in Containerized Applications β†’ Docker Compose Fundamentals β†’ Understanding compose.yaml β†’ Defining Services with Docker Compose β†’ Managing Multiple Containers with Compose β†’ Docker Compose Networks β†’ Docker Compose Volumes β†’ Environment Variables in Docker Compose β†’ Service Dependencies with depends_on β†’ Health Checks in Docker Compose β†’ Docker Compose Profiles β†’ Building Images with Docker Compose β†’ Scaling Services with Docker Compose β†’ Docker Container Health Checks β†’ Resource Limits for Containers β†’ CPU and Memory Management β†’ Container Restart Policies β†’ Docker Security Fundamentals β†’ Running Containers as Non-Root Users β†’ Docker Linux Capabilities β†’ Seccomp Profiles in Docker β†’ Read-Only Container Filesystems β†’ Docker Image Security Scanning β†’ Minimizing Container Attack Surfaces β†’ Docker Registry Authentication β†’ Private Docker Registries β†’ Tagging and Pushing Docker Images β†’ Docker in CI/CD Pipelines β†’ Automated Docker Image Builds β†’ Docker with GitHub Actions β†’ Containerizing Backend Applications β†’ Containerizing Frontend Applications β†’ Containerizing Databases β†’ Docker Logging and Monitoring β†’ Debugging Docker Containers β†’ Docker Performance Optimization β†’ Docker in Production Environments β†’ Docker and Kubernetes Integration Grab Docker Mastery Handbook: https://t.co/DLllv30suF
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Tech Fusionist Verified account @techyoutbe
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Vivek | Cybersecurity Verified account @VivekIntel
Cybersecurity Projects β€” 70+ Hands-On Security Project Collection πŸ’₯πŸ’€ An open-source repository featuring 70+ cybersecurity projects, certification roadmaps and learning resources spanning beginner to advanced skill levels. ✨ Features: β€’ Includes 70+ practical cybersecurity projects across multiple difficulty tiers β€’ Covers topics such as OSINT, malware analysis, cloud security, DFIR and AI security β€’ Provides certification roadmaps for multiple cybersecurity career paths β€’ Supports hands-on learning with source code, documentation and project guides β€’ Showcases projects in Python, Go, Rust, Zig, C++, TypeScript and more πŸ”— https://t.co/r58W7RhJi1 #CyberSecurity #OpenSource #Python #GoLang #InfoSec #Learning
VivekIntel's tweet photo. Cybersecurity Projects β€” 70+ Hands-On Security Project Collection πŸ’₯πŸ’€ An open-source repository featuring 70+ cybersecurity projects, certification roadmaps and learning resources spanning beginner to advanced skill levels. ✨ Features: β€’ Includes 70+ practical cybersecurity projects across multiple difficulty tiers β€’ Covers topics such as OSINT, malware analysis, cloud security, DFIR and AI security β€’ Provides certification roadmaps for multiple cybersecurity career paths β€’ Supports hands-on learning with source code, documentation and project guides β€’ Showcases projects in Python, Go, Rust, Zig, C++, TypeScript and more πŸ”— https://t.co/r58W7RhJi1 #CyberSecurity #OpenSource #Python #GoLang #InfoSec #Learning
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Nandkishor Verified account @devops_nk
DevOps Interview Series: #3 Q: If you're already using Docker, why do you need Kubernetes ? Many candidates answer: ❌ "Kubernetes is used to run Docker." That's not the complete answer. Docker and Kubernetes solve different problems. 🐳 Docker packages your application into containers. ☸️ Kubernetes manages those containers in production. Why do companies use Kubernetes? βœ… Auto Scaling βœ… Self-Healing βœ… Load Balancing βœ… Rolling Updates & Rollbacks βœ… High Availability βœ… Service Discovery βœ… Secrets & ConfigMaps βœ… Automated Container Orchestration Best interview one-liner: Docker is for containerization. Kubernetes is for container orchestration. This is one of the most common DevOps interview questions. Follow @devops_nk for more DevOps interview questions.
devops_nk's tweet photo. DevOps Interview Series: #3 Q: If you're already using Docker, why do you need Kubernetes ? Many candidates answer: ❌ "Kubernetes is used to run Docker." That's not the complete answer. Docker and Kubernetes solve different problems. 🐳 Docker packages your application into containers. ☸️ Kubernetes manages those containers in production. Why do companies use Kubernetes? βœ… Auto Scaling βœ… Self-Healing βœ… Load Balancing βœ… Rolling Updates & Rollbacks βœ… High Availability βœ… Service Discovery βœ… Secrets & ConfigMaps βœ… Automated Container Orchestration Best interview one-liner: Docker is for containerization. Kubernetes is for container orchestration. This is one of the most common DevOps interview questions. Follow @devops_nk for more DevOps interview questions.
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Dhanian πŸ—―οΈ Verified account @e_opore
Linux Mastering Made Simple.
e_opore's tweet photo. Linux Mastering Made Simple. https://t.co/8exMbFhf9w
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Ayaan 🐧 Verified account @twtayaan
Dockerfile Syntax Cheat Sheet. 🐳
twtayaan's tweet photo. Dockerfile Syntax Cheat Sheet. 🐳 https://t.co/42HNI9zjaF
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Dhanian πŸ—―οΈ Verified account @e_opore
WHAT IS gRPC? DEFINITION -> gRPC (Google Remote Procedure Call) is a high-performance, open-source framework for communication between distributed applications -> It enables clients and servers to communicate efficiently using Remote Procedure Calls (RPCs) -> Uses HTTP/2 for transport and Protocol Buffers (Protobuf) for data serialization CORE FEATURES HIGH PERFORMANCE -> Uses binary serialization with Protocol Buffers -> Faster and more efficient than text-based APIs like JSON HTTP/2 SUPPORT -> Multiplexes multiple requests over a single connection -> Supports header compression and bidirectional streaming CODE GENERATION -> Automatically generates client and server code -> Supports many programming languages CROSS-PLATFORM -> Works across different operating systems and programming languages -> Ideal for distributed systems and microservices HOW gRPC WORKS -> Client calls a remote method (RPC) -> Request is serialized using Protocol Buffers -> Request is sent over HTTP/2 -> Server receives and processes the request -> Server executes business logic -> Response is serialized using Protocol Buffers -> Response is returned to the client RPC TYPES UNARY RPC -> Client sends one request and receives one response SERVER STREAMING RPC -> Client sends one request and receives multiple responses CLIENT STREAMING RPC -> Client sends multiple requests and receives one response BIDIRECTIONAL STREAMING RPC -> Client and server exchange multiple messages simultaneously KEY COMPONENTS PROTOBUF (.proto) FILE -> Defines services and message structures -> Acts as the contract between client and server SERVICE -> Collection of remote procedures (methods) MESSAGE -> Structured data sent between client and server STUBS -> Auto-generated client and server code used for communication KEY CHARACTERISTICS -> HIGH PERFORMANCE -> Optimized for low latency and high throughput -> STRONGLY TYPED -> Uses Protocol Buffers for strict data structures -> LANGUAGE AGNOSTIC -> Supports Java, Go, Python, C#, Node.js, Rust, and many others -> SCALABLE -> Ideal for microservices and cloud-native applications ADVANTAGES -> Very fast and efficient communication -> Smaller payload sizes than JSON APIs -> Automatic code generation -> Supports streaming communication -> Excellent for microservices architecture DISADVANTAGES -> Harder to debug than REST APIs -> Less human-readable because it uses binary data -> Browser support requires gRPC-Web -> Learning Protocol Buffers adds complexity REAL-WORLD USE CASES -> Communication between microservices -> Cloud-native applications -> Real-time streaming systems -> IoT platforms -> Machine learning services -> Internal APIs for large-scale systems gRPC VS REST -> gRPC uses HTTP/2, while REST commonly uses HTTP/1.1 or HTTP/2 -> gRPC uses Protocol Buffers, while REST commonly uses JSON -> gRPC is optimized for speed and low latency, while REST prioritizes simplicity and broad compatibility -> gRPC supports bidirectional streaming, while REST typically follows a request-response model BEST PRACTICES -> Design clear and reusable .proto files -> Use streaming only when necessary -> Implement authentication using TLS and tokens -> Handle deadlines and request timeouts -> Enable logging and monitoring for RPC calls -> Version APIs to maintain backward compatibility BACKEND ENGINEERING HANDBOOK -> Grab Backend Engineering Handbook -> https://t.co/t9mqUuRbjx
e_opore's tweet photo. WHAT IS gRPC? DEFINITION -> gRPC (Google Remote Procedure Call) is a high-performance, open-source framework for communication between distributed applications -> It enables clients and servers to communicate efficiently using Remote Procedure Calls (RPCs) -> Uses HTTP/2 for transport and Protocol Buffers (Protobuf) for data serialization CORE FEATURES HIGH PERFORMANCE -> Uses binary serialization with Protocol Buffers -> Faster and more efficient than text-based APIs like JSON HTTP/2 SUPPORT -> Multiplexes multiple requests over a single connection -> Supports header compression and bidirectional streaming CODE GENERATION -> Automatically generates client and server code -> Supports many programming languages CROSS-PLATFORM -> Works across different operating systems and programming languages -> Ideal for distributed systems and microservices HOW gRPC WORKS -> Client calls a remote method (RPC) -> Request is serialized using Protocol Buffers -> Request is sent over HTTP/2 -> Server receives and processes the request -> Server executes business logic -> Response is serialized using Protocol Buffers -> Response is returned to the client RPC TYPES UNARY RPC -> Client sends one request and receives one response SERVER STREAMING RPC -> Client sends one request and receives multiple responses CLIENT STREAMING RPC -> Client sends multiple requests and receives one response BIDIRECTIONAL STREAMING RPC -> Client and server exchange multiple messages simultaneously KEY COMPONENTS PROTOBUF (.proto) FILE -> Defines services and message structures -> Acts as the contract between client and server SERVICE -> Collection of remote procedures (methods) MESSAGE -> Structured data sent between client and server STUBS -> Auto-generated client and server code used for communication KEY CHARACTERISTICS -> HIGH PERFORMANCE -> Optimized for low latency and high throughput -> STRONGLY TYPED -> Uses Protocol Buffers for strict data structures -> LANGUAGE AGNOSTIC -> Supports Java, Go, Python, C#, Node.js, Rust, and many others -> SCALABLE -> Ideal for microservices and cloud-native applications ADVANTAGES -> Very fast and efficient communication -> Smaller payload sizes than JSON APIs -> Automatic code generation -> Supports streaming communication -> Excellent for microservices architecture DISADVANTAGES -> Harder to debug than REST APIs -> Less human-readable because it uses binary data -> Browser support requires gRPC-Web -> Learning Protocol Buffers adds complexity REAL-WORLD USE CASES -> Communication between microservices -> Cloud-native applications -> Real-time streaming systems -> IoT platforms -> Machine learning services -> Internal APIs for large-scale systems gRPC VS REST -> gRPC uses HTTP/2, while REST commonly uses HTTP/1.1 or HTTP/2 -> gRPC uses Protocol Buffers, while REST commonly uses JSON -> gRPC is optimized for speed and low latency, while REST prioritizes simplicity and broad compatibility -> gRPC supports bidirectional streaming, while REST typically follows a request-response model BEST PRACTICES -> Design clear and reusable .proto files -> Use streaming only when necessary -> Implement authentication using TLS and tokens -> Handle deadlines and request timeouts -> Enable logging and monitoring for RPC calls -> Version APIs to maintain backward compatibility BACKEND ENGINEERING HANDBOOK -> Grab Backend Engineering Handbook -> https://t.co/t9mqUuRbjx
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Ayaan 🐧 Verified account @twtayaan
Kubernetes controllers explained in one infographic
twtayaan's tweet photo. Kubernetes controllers explained in one infographic https://t.co/3rcDtomR60
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Tech Fusionist Verified account @techyoutbe
AI is not an option anymore. (FREE visual guide with Projects) So this weekend, I decided to share one of my most powerful visual guides with this amazing community. 🎁 FREE for a limited time: AI Infrastructure Engineer Roadmap with 8 Production-Grade Projects If you find it valuable: ❀️ Like this post πŸ” Share it with others (to help them to grab it) πŸ’¬ Leave a comment (quick feedback) Your support helps me keep building and sharing simplified visual content that makes learning faster and easier for everyone. Grab your free copy below πŸ‘‡ https://t.co/jDN91mBamm
techyoutbe's tweet photo. AI is not an option anymore. (FREE visual guide with Projects) So this weekend, I decided to share one of my most powerful visual guides with this amazing community. 🎁 FREE for a limited time: AI Infrastructure Engineer Roadmap with 8 Production-Grade Projects If you find it valuable: ❀️ Like this post πŸ” Share it with others (to help them to grab it) πŸ’¬ Leave a comment (quick feedback) Your support helps me keep building and sharing simplified visual content that makes learning faster and easier for everyone. Grab your free copy below πŸ‘‡ https://t.co/jDN91mBamm
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Dhanian πŸ—―οΈ Verified account @e_opore
🐧 Day 23/30 β€” #Linux Environment variables are one of the most powerful features in Linux. They store configuration values that programs and the shell use to determine how the system behaves. Linux Environment Variables – PATH, HOME, and Custom Variables Understanding environment variables helps you configure applications, customize your shell, and manage development environments efficiently. What Are Environment Variables? Environment variables are named values available to the shell and running processes. They control things such as: β†’ Executable search paths β†’ User home directories β†’ Language settings β†’ Application configuration β†’ Temporary file locations Viewing Environment Variables β†’ printenv Displays all environment variables. β†’ env Another command for listing environment variables. β†’ echo $PATH Displays the value of the PATH variable. PATH – Executable Search Path The PATH variable tells Linux where to search for executable programs. Example: β†’ echo $PATH Typical output: β†’ /usr/local/bin:/usr/bin:/bin When you type a command like: β†’ python Linux searches each directory listed in PATH until it finds the executable. HOME – User Home Directory The HOME variable stores the path to the current user's home directory. Example: β†’ echo $HOME Typical output: β†’ /home/username Many applications use HOME to store user-specific configuration files. Creating Custom Variables You can create your own environment variables. Example: β†’ export PROJECT_NAME="LinuxCourse" Access it using: β†’ echo $PROJECT_NAME Making Variables Persistent Temporary variables disappear after you close the terminal. To make them permanent, add them to shell configuration files such as: β†’ ~/.bashrc β†’ ~/.profile Then reload the configuration: β†’ source ~/.bashrc Why Environment Variables Matter: β†’ Customize your Linux environment β†’ Configure development tools β†’ Simplify command execution β†’ Store application settings β†’ Improve automation and scripting workflows Mastering PATH, HOME, and custom environment variables gives you greater control over your Linux system and makes working from the command line far more efficient. 🐧 Grab Linux Ebook: https://t.co/DeHjJ1Wubf #Linux #LinuxTutorial #EnvironmentVariables #Bash #LinuxCommands #ShellScripting #DevOps #SystemAdministration #OpenSource #100DaysOfCode
e_opore's tweet photo. 🐧 Day 23/30 β€” #Linux Environment variables are one of the most powerful features in Linux. They store configuration values that programs and the shell use to determine how the system behaves. Linux Environment Variables – PATH, HOME, and Custom Variables Understanding environment variables helps you configure applications, customize your shell, and manage development environments efficiently. What Are Environment Variables? Environment variables are named values available to the shell and running processes. They control things such as: β†’ Executable search paths β†’ User home directories β†’ Language settings β†’ Application configuration β†’ Temporary file locations Viewing Environment Variables β†’ printenv Displays all environment variables. β†’ env Another command for listing environment variables. β†’ echo $PATH Displays the value of the PATH variable. PATH – Executable Search Path The PATH variable tells Linux where to search for executable programs. Example: β†’ echo $PATH Typical output: β†’ /usr/local/bin:/usr/bin:/bin When you type a command like: β†’ python Linux searches each directory listed in PATH until it finds the executable. HOME – User Home Directory The HOME variable stores the path to the current user's home directory. Example: β†’ echo $HOME Typical output: β†’ /home/username Many applications use HOME to store user-specific configuration files. Creating Custom Variables You can create your own environment variables. Example: β†’ export PROJECT_NAME="LinuxCourse" Access it using: β†’ echo $PROJECT_NAME Making Variables Persistent Temporary variables disappear after you close the terminal. To make them permanent, add them to shell configuration files such as: β†’ ~/.bashrc β†’ ~/.profile Then reload the configuration: β†’ source ~/.bashrc Why Environment Variables Matter: β†’ Customize your Linux environment β†’ Configure development tools β†’ Simplify command execution β†’ Store application settings β†’ Improve automation and scripting workflows Mastering PATH, HOME, and custom environment variables gives you greater control over your Linux system and makes working from the command line far more efficient. 🐧 Grab Linux Ebook: https://t.co/DeHjJ1Wubf #Linux #LinuxTutorial #EnvironmentVariables #Bash #LinuxCommands #ShellScripting #DevOps #SystemAdministration #OpenSource #100DaysOfCode
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Tech Fusionist Verified account @techyoutbe
1/2 - DR (Disaster Recovery)
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π‡πšπ¦π³πš | Networking Guy Verified account @Hamzaonchain
DevSecOps Tools
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