sed -i command for in-place editing to work with both GNU sed and BSD/OSX

Question

I\'ve got a makefile (developed for gmake on Linux) that I\'m attempting to port to MacOS, but it seems like sed doesn\'t want to cooperate. What I

Answer 1

Actually, doing

sed -i -e "s/blah/blah/" files

doesn't do what you expect in MacOS either. Instead it creates backup files with -e extension.

The proper command for MacOS is

sed -i "" -e "s/blah/blah/" files

On Linux, remove the space between -i and "" (see related answer)

sed -i"" -e "s/blah/blah/" files