Explain some of the fundamental concepts of unix?

What do you understand by the term single user system?

What do you understand by the term filters?

What methodology can be utilized to modify the password in unix?

Define the term directory?

List some of the frequent shells used in unix along with their indicators?

Explain the terms links and symbolic links with respect to unix?

What is hardlink and softlink in unix?

What is a filter in unix? Give an example.

What are a shell in unix and its types?

What is unix orphan process?

What are the common directory management commands in unix?

What are the essential features of the unix operating system?

What are the file permissions and access modes in unix?

What is the role of the kernel in unix?