What is alias mechanism? Explain.
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What are the common directory management commands in unix?
What is unix file?
Discuss the mount and unmount system calls ?
Describe the concept of “region”.
What is the best free unix based os?
What is awk sed unix?
How can you kill a process in unix?
Who developed unix operating system?
What does ls mean in unix?
Is mac a unix?
What is unix portability?
I want to invest in learning things that will get me good jobs in future. But wondering if Unix knowledge is something that is a MUST have or is it better to do any Data-warehouse tool (cognos, Qclik view, ETL etc..). Please suggest me.