How to Kill Unresponsive Processes on Linux Using Terminal Commands

Understanding Linux Process Management

• 💡 The video demonstrates how to manage unresponsive processes on Linux using terminal commands.
• 🎯 A sleep process is created in the background using sleep [duration] & to serve as a demo.

Identifying Process IDs (PIDs)

• 🔍 To find the PID of a process, commands like ps combined with grep are used (e.g., ps aux | grep sleep).
• 📌 It's crucial to verify the PID before terminating a process to avoid stopping the wrong program.

Terminating Processes with Signals

• ⚡ The kill command is introduced, which by default sends Signal 15 (SIGTERM) to terminate a process gracefully.
• ⚠️ For processes that do not respond to SIGTERM, Signal 9 (SIGKILL) can be used with kill -9 [PID] to force termination.

Managing Multiple Processes

• 🚀 The killall command is presented as a way to terminate multiple processes simultaneously by their name (e.g., killall sleep).
• ✅ This method is more efficient than killing processes one by one when dealing with several instances of the same program.