🐚 Shell Pipes

📖 What is a Pipe?

A | (pipe) takes the output of one command and sends it as input to the next command.

📦 Examples

• echo "hello world" | tr 'a-z' 'A-Z' — Converts text to uppercase
• cat file.txt | grep "error" — Finds lines containing "error"
• ps aux | sort -nrk 3 | head -5 — Top 5 CPU processes

💻 Try It Yourself