Topic

Text Processing

Cut, sort, sed and awk pipelines for reshaping logs, CSVs and config files without opening an editor.

Regular ExpressionsGuide

Regular Expressions in Shell Tools From Basics to Practice

Regular expressions in shell tools explained: BRE, ERE and PCRE in grep, sed, awk and Bash, with real output, quoting rules, pitfalls and performance limits.

34 min read

Command LineGuide

grep sed and awk With Real Examples You Can Copy and Paste

A grep sed awk guide with real, run examples: search, replace, extract and summarize text from logs, config files and CSV, and know which tool to pick.

36 min read

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