Process Substitution: Advanced Input/Output

Process substitution treats command output as files. Advanced I/O.

Here's the thing: Process substitution is advanced. Use it when needed.

Basic Syntax

diff <(command1) <(command2)

My take: <() treats output as file. Use it.

Common Patterns

Compare Outputs

diff <(sort file1.txt) <(sort file2.txt)

What's Next?

Now that you understand process substitution, let's talk about Globbing Patterns.

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Personal note: Process substitution seemed complex at first. Then I used it. Now I use it when needed. It's powerful. Learn it.