Many text tools consume stdin naturally.
Section: Overview and Core Patterns
Read from standard input
bash
bash
journalctl -u nginx | awk '{print $1, $2, $3}'Explanation
Most Linux text tools are designed for stream processing and work especially well in pipelines.
Learn the surrounding workflow
Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.
Related commands
Same sheet · prioritizing Overview and Core Patterns
Pipe file content into grep
Basic pipeline for filtering text from a file.
Save output and continue pipeline
Write output to a file while still passing it downstream.