Phone interview with HR - phone interview with hiring manager where they ask mostly experience related questions to see if it's relevant to a position; on-site interview - 2 hours with 3 people with technical questions about my C programming experience

First call was with HR, general expectation discussion. Then 2 technical rounds, easier of you know java and technologies as a senior developer. Then there was techno-managerial round : this was the worst ever experience in my life. They had totally different expectations and priorities than what stated in the job description. All of their product work is being done using java, sql, spring, hibernate, cloud etc but they have priority for Linux commands instead. If you can write down few linux commands (just MEMORiZE) then you are good, because thats all matters as a developer.