I’ll likely update this as time goes on. Emacs is incredible and I’m just beginning to branch into its extended functionality.
Mark a region to alter. Choose one of the following.
M-% string RET newstring RET
C-M-% regexp RET newstring RET
Search current string under cursor
Note: further C-w will expand to additional strings, C-s to move through selections.
Quick display all matching lines
C-x r t string-rectangle
Create a rectangle of an area and replace the content with content you type.