Question

Consider following text file:

something
something
something = someother thing
other thing = third thing
another thing = forth thing

I want to make it look like this:

something
something
keyword something = someother thing
keyword other thing = third thing
keyword another thing = forth thing

so that, I add keyword to each line, what is contains a equals symbol in it.
Can I do this with global command, or how do you recommend I should do this?

Answer 1

:g/=/s/^/keyword /

or

:g/=/normal ikeyword

Note the space after “keyword”

For this type of problem, it’s also quite common to use a solution like:

:%!sed '/=/s/^/keyword /'