“unary operator expected” error in Bash if condition

Question

I\'ve been trying to figure out whats wrong with this but just can\'t figure it out..

This is the part seems to be getting an error..

elif [ $operati         


        

Answer 1

Took me a while to find this but note that if you have a spacing error you will also get the same error:

[: =: unary operator expected

Correct:

if [ "$APP_ENV" = "staging" ]

vs

if ["$APP_ENV" = "staging" ]

As always setting -x debug variable helps to find these:

set -x