Bash variable assignment before command

Question

A couple of days ago I came across a command

AWS_ACCESS_KEY=\"foo\" AWS_SECRET_KEY=\"bar\" aws list iam

I see that setting variables before

Answer 1

you are missing && before mkdir below is complete statement you desire:

dname=$(date +%d_%m_%y) && mkdir ${dname} && cd ${dname}

Also if its not necessary to declare dname you can do: mkdir $(date +%d_%m_%y) && cd ${dname} both will give same answer