Apply range to any command that does not accept ranges
From Vim Tips Wiki
created 2006 · complexity basic · author Yakov Lerner · version 6.0
Some commands do not accept ranges, but you want to execute them for every line in the range.
This trick allows to apply the range to any command that does not accept range directly:
:n1,n2 g/^/ command
That is, you add
g/^/ between the range and the command.