how to replace two things at once with sed?

Question

Given is string: dog apple orange banana

I need to make it: monkey apple cow banana

That is without calling sed twice.

Answer 1

The following sed example should solve your problem. sed allows multiple -e switches, which allows you to replace more than one thing at a time.

sed -e 's/dog/monkey/g' -e 's/orange/cow/g'

Answer 2

Use ; to queue commands:

sed -e 's/dog/monkey/g;s/orange/cow/g'