Preparation for Devops job

Hi everyone .
I have to be interviewed for Devops engineer profile.I have been recommended to prepare on
Mysql , Python , Linux Bash . I am python developer .Please suggest me how to do preparation and apart from technical stuff on which things i have to work whether it is soft skills , aptitude etc. This is going to be my first interview , i need descent advise from some experienced people .If possible please drop the link for consise study material .I have 20 -25 days approximately and i can devote my day and night towards preparation .