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Learning Efficiency from a Dev Anecdote
- Daniel Barrett learned efficient bash techniques by watching colleagues waste time restarting editors repeatedly.
- This inspired his deep dive into command line efficiency and ultimately writing his book.
Command Substitution for Automation
- Use command substitution to inject output of one command into another command’s text.
- This avoids manual copying and helps automate complex tasks like batch editing files.
Process Substitution with Virtual Files
- Use process substitution to let commands that expect files operate on command outputs without creating temporary files.
- Surround commands with <( and ) to create virtual files for seamless diffing or moving.