Here’s a Free list of cheat sheets for programmers:
• SQL: sqltutorial.org/sql-cheat-sheet
• Git: cheatography.com/samcollett/cheat-sheet…
• Python: Python Cheat Sheet & Quick Reference
• Bash: Bash scripting cheatsheet
• HTML: htmlcheatsheet.com
• CSS: CSS Cheat Sheet - Interactive, not a PDF | HTMLCheatSheet.com
• JavaScript: JavaScript Cheat Sheet & Quick Reference
Share if you have some