Find and replace strings in vim on multiple lines

Question

I can do :%s///g for replacing a string across a file, or :s///

Answer 1

Replace All:

:%s/foo/bar/g

Find each occurrence of 'foo' (in all lines), and replace it with 'bar'.

For specific lines:

:6,10s/foo/bar/g

Change each 'foo' to 'bar' for all lines from line 6 to line 10 inclusive.