99% of My Linux Life Runs on These Commands! Want to be a pro in DevOps or SRE? Start by mastering these essential Linux commands.
Here’s my go-to toolbox that I literally use every single day in production:
Basics 1. man – Read manuals like a boss. 2. nano / vim – For quick edits and full control. 3. ls -l – View file details like a pro. 4. ssh – Connect remotely, securely. 5. df / du -hs * – See who’s eating your disk space. 6. chown / chmod – Control access and ownership. 7. dig – Resolve IPs & domains in seconds.
Everyday Use 1. history – Don’t type that again. 2. cd - – Switch back like a ninja. 3. xargs – Build complex commands with ease. 4. pstree -p – View process hierarchy. 5. pgrep / pkill – Find or kill processes smartly.
Processing Files & Data 1. find -iname '*file*' – Locate ANY file. 2. grep / ack / ag – Powerful text search. 3. awk / sed – Data formatting mastery. 4. sort / uniq – Clean and analyze data. 5. cut / paste – Reshape your columns.
System Debugging 1. top / htop – Real-time performance check. 2. netstat -lntp – Watch open ports. 3. dstat – See all stats in one view. 4. strace – Trace system calls and debug faster. 5. lsof – Know who’s using your files.
Without Linux, DevOps life is incomplete. Which command is your most-used one? Comment below!
🔹 Control Plane – Manages the entire system and makes decisions. • API Server – The main entry point for all Kubernetes commands. • Scheduler – Assigns workloads to the right nodes. • Controller Manager – Ensures everything stays in the desired state. • etcd – Stores all cluster data.
🔹 Worker Nodes – Run the applications. • Kubelet – Ensures containers are running inside pods. • Container Runtime – Runs containers (Docker, containerd, CRI-O). • Kube Proxy – Handles networking inside the cluster.
🔹 Pods – The smallest unit in Kubernetes, containing one or more containers.
Did you know Podman allows you to run containers without root access? 🔥 Unlike Docker, Podman runs in rootless mode by default, making it more secure!
Try this: 🔹 Run a rootless container → podman run --name secure-nginx -d nginx 🔹 Check user info → podman top secure-nginx 🔹 No root? No problem! → podman unshare cat /proc/self/uid_map
Did you know? Podman runs containers without a daemon, making it more secure! 🔥 ✔️ Rootless containers ✔️ Docker-compatible CLI ✔️ Lightweight & daemonless
Try it today: 👉 podman pull alpine 👉 podman run --rm -it alpine sh
Want to manage containers without Docker? Try Podman! Here are some quick commands to get started: ✅ Pull an image → podman pull ubuntu ✅ Run a container → podman run --name mycontainer -d ubuntu ✅ List running containers → podman ps ✅ Stop a container → podman stop mycontainer
Josifha Ashmi J
99% of My Linux Life Runs on These Commands!
Want to be a pro in DevOps or SRE? Start by mastering these essential Linux commands.
Here’s my go-to toolbox that I literally use every single day in production:
Basics
1. man – Read manuals like a boss.
2. nano / vim – For quick edits and full control.
3. ls -l – View file details like a pro.
4. ssh – Connect remotely, securely.
5. df / du -hs * – See who’s eating your disk space.
6. chown / chmod – Control access and ownership.
7. dig – Resolve IPs & domains in seconds.
Everyday Use
1. history – Don’t type that again.
2. cd - – Switch back like a ninja.
3. xargs – Build complex commands with ease.
4. pstree -p – View process hierarchy.
5. pgrep / pkill – Find or kill processes smartly.
Processing Files & Data
1. find -iname '*file*' – Locate ANY file.
2. grep / ack / ag – Powerful text search.
3. awk / sed – Data formatting mastery.
4. sort / uniq – Clean and analyze data.
5. cut / paste – Reshape your columns.
System Debugging
1. top / htop – Real-time performance check.
2. netstat -lntp – Watch open ports.
3. dstat – See all stats in one view.
4. strace – Trace system calls and debug faster.
5. lsof – Know who’s using your files.
Without Linux, DevOps life is incomplete.
Which command is your most-used one? Comment below!
#LinuxCommands #DevOpsLife #SRETools #LinuxTips #SystemAdmin #CommandLineMagic #ShellScripting #LinuxForLife #OpenSource #DevOpsEngineer #Automation #SysOps #TerminalNinjas #LinkedInTech #TechTalk #MillionViewsChallenge
5 months ago | [YT] | 1
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Josifha Ashmi J
Kubernetes Architecture Simplified! 🚀
Kubernetes is made up of two main parts:
🔹 Control Plane – Manages the entire system and makes decisions.
• API Server – The main entry point for all Kubernetes commands.
• Scheduler – Assigns workloads to the right nodes.
• Controller Manager – Ensures everything stays in the desired state.
• etcd – Stores all cluster data.
🔹 Worker Nodes – Run the applications.
• Kubelet – Ensures containers are running inside pods.
• Container Runtime – Runs containers (Docker, containerd, CRI-O).
• Kube Proxy – Handles networking inside the cluster.
🔹 Pods – The smallest unit in Kubernetes, containing one or more containers.
🔹 Services & Ingress – Manage internal and external network access.
#Kubernetes #Cloud #DevOps #Containers
7 months ago | [YT] | 1
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Josifha Ashmi J
Rootless Containers with Podman! 🛡️🚀
Did you know Podman allows you to run containers without root access? 🔥 Unlike Docker, Podman runs in rootless mode by default, making it more secure!
Try this:
🔹 Run a rootless container → podman run --name secure-nginx -d nginx
🔹 Check user info → podman top secure-nginx
🔹 No root? No problem! → podman unshare cat /proc/self/uid_map
Run containers without worrying about security risks! 🛡️ #Podman #RootlessContainers #Security #DevOps
7 months ago | [YT] | 1
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Josifha Ashmi J
Convert Your Podman Containers to YAML! 📝🚀
Did you know? You can easily convert your Podman containers into Kubernetes-compatible YAML files! 🔥
Here’s how:
1️⃣ Run a container → podman run --name mycontainer -d nginx
2️⃣ Generate YAML → podman generate kube mycontainer > mycontainer.yaml
3️⃣ View the file → cat mycontainer.yaml
4️⃣ Recreate it → podman play kube mycontainer.yaml
Seamlessly move from Podman to Kubernetes! ⚡ #Podman #Kubernetes #DevOps #Containers
7 months ago | [YT] | 1
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Josifha Ashmi J
Why Use Podman Over Docker? 🤔
Did you know? Podman runs containers without a daemon, making it more secure! 🔥
✔️ Rootless containers
✔️ Docker-compatible CLI
✔️ Lightweight & daemonless
Try it today:
👉 podman pull alpine
👉 podman run --rm -it alpine sh
#Podman #DevOps #Containers #Linux
7 months ago | [YT] | 1
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Josifha Ashmi J
Beginner’s Guide to Podman 🚀
Want to manage containers without Docker? Try Podman! Here are some quick commands to get started:
✅ Pull an image → podman pull ubuntu
✅ Run a container → podman run --name mycontainer -d ubuntu
✅ List running containers → podman ps
✅ Stop a container → podman stop mycontainer
No root access required! 🛡️ #Podman #Containers #DevOps
7 months ago | [YT] | 1
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