Here’s a list of 42+ text-editing keyboard shortcuts that work on various platforms and text editors:

1. Cut: Ctrl + X (Windows/Linux) or Command + X (Mac)
2. Copy: Ctrl + C (Windows/Linux) or Command + C (Mac)
3. Paste: Ctrl + V (Windows/Linux) or Command + V (Mac)
4. Undo: Ctrl + Z (Windows/Linux) or Command + Z (Mac)
5. Redo: Ctrl + Y (Windows/Linux) or Command + Shift + Z (Mac)
6. Select All: Ctrl + A (Windows/Linux) or Command + A (Mac)
7. Find: Ctrl + F (Windows/Linux) or Command + F (Mac)
8. Replace: Ctrl + H (Windows/Linux) or Command + F (Mac) and then choose the “Replace” tab
9. Bold: Ctrl + B (Windows/Linux) or Command + B (Mac)
10. Italic: Ctrl + I (Windows/Linux) or Command + I (Mac)
11. Underline: Ctrl + U (Windows/Linux) or Command + U (Mac)
12. Increase font size: Ctrl + ] (Windows/Linux) or Command + ] (Mac)
13. Decrease font size: Ctrl + [ (Windows/Linux) or Command + [ (Mac)
14. Align left: Ctrl + L (Windows/Linux) or Command + L (Mac)
15. Align center: Ctrl + E (Windows/Linux) or Command + E (Mac)
16. Align right: Ctrl + R (Windows/Linux) or Command + R (Mac)
17. Justify text: Ctrl + J (Windows/Linux) or Command + J (Mac)
18. Insert bullet points: Ctrl + Shift + 8 (Windows/Linux) or Command + Shift + 8 (Mac)
19. Indent: Ctrl + ] (Windows/Linux) or Command + ] (Mac)
20. Outdent: Ctrl + [ (Windows/Linux) or Command + [ (Mac)
21. Insert hyperlink: Ctrl + K (Windows/Linux) or Command + K (Mac)
22. Select previous word: Ctrl + Shift + Left arrow (Windows/Linux) or Option + Shift + Left arrow (Mac)
23. Select next word: Ctrl + Shift + Right arrow (Windows/Linux) or Option + Shift + Right arrow (Mac)
24. Move to beginning of line: Ctrl + Home (Windows/Linux) or Command + Left arrow (Mac)
25. Move to end of line: Ctrl + End (Windows/Linux) or Command + Right arrow (Mac)
26. Move to previous paragraph: Ctrl + Up arrow (Windows/Linux) or Option + Up arrow (Mac)
27. Move to next paragraph: Ctrl + Down arrow (Windows/Linux) or Option + Down arrow (Mac)
28. Delete previous word: Ctrl + Backspace (Windows/Linux) or Option + Delete (Mac)
29. Delete next word: Ctrl + Delete (Windows/Linux) or Fn + Backspace (Mac)
30. Toggle uppercase/lowercase: Shift + F3 (Windows/Linux) or Command + Shift + U (Mac)
31. Insert date and time: Ctrl + ; (Windows/Linux) or Command + ; (Mac)
32. Insert special character: Ctrl + Shift + U (Windows/Linux) or Control + Command + Space (Mac)
33. Save: Ctrl + S (Windows/Linux) or Command + S (Mac)
34. Print: Ctrl + P (Windows/Linux) or Command + P (Mac)
35. Close document/tab: Ctrl + W (Windows/Linux) or Command + W (Mac)
36. New document/tab: Ctrl + N (Windows/Linux) or Command + N (Mac)
37. Switch between open documents/tabs: Ctrl + Tab (Windows/Linux) or Control + Tab (Mac)
38. Zoom in: Ctrl + + (Windows/Linux) or Command + + (Mac)
39. Zoom out: Ctrl + – (Windows/Linux) or Command + – (Mac)
40. Toggle full screen: F11 (Windows) or Command + Control + F (Mac)
41. Insert line break: Shift + Enter (Windows/Linux) or Shift + Return (Mac)
42. Insert paragraph break: Enter (Windows/Linux) or Return (Mac)

These shortcuts are commonly used in various text editors and word processors across different operating systems. Note that some shortcuts may vary slightly depending on the specific software or platform you are using.