What are internal and external commands in unix?
What is unix and its features?
Can you tell me something about wildcard interpretation?
What are positional parameters in unix?
Is a directory unix?
how to kernel protected memory?
What is umask in unix?
What are directories in unix?
What are special characters in unix?
How would you display the last line of a file?
Is windows unix?
What is called in unix?
What is piping?