- The Linux Command Line, 2nd Ed. - William Shotts - 2019 - The best introduction to Bash and the Unix philosophy — free online.
- sed & awk, 2nd Ed. - Dale Dougherty & Arnold Robbins - 1997 - Deep mastery of essential Unix text-processing tools.
- Classic Shell Scripting - Arnold Robbins & Nelson H. F. Beebe - 2005 - Real-world shell scripting patterns for portability and reliability.
- UNIX Power Tools, 3rd Ed. - Shelley Powers, Jerry Peek, Tim O'Reilly, Mike Loukides - 2002 - A grab bag of practical Unix techniques and productivity tricks you’ll reuse constantly.
- The Unix Programming Environment - Brian W. Kernighan & Rob Pike - 1984 - The classic book on Unix tools, pipelines, and the philosophy behind them.