Bash Pocket Reference
Arnold Robbins
C++ Pocket Reference
Kyle Loudon
C# 8.0 Pocket Reference
Joseph Albahari & Ben Albahari
Windows PowerShell Pocket Reference
Lee Holmes
sed & awk Pocket Reference
SQL Pocket Guide
Jonathan Gennick
Regular Expression Pocket Reference
Tony Stubblebine
Python Pocket Reference
Mark Lutz
Java Pocket Guide
Robert Liguori & Patricia Liguori
C Pocket Reference
Peter Prinz & Ulla Kirch-Prinz