Chapter Review Questions

   

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1:	Describe the process used by the UNIX shell for command execution.
2:	What is the command to find all lines in a file that start or end with the word "an"?
3:	What is the result of the following command? grep ^[a-z]$ ?
4:	Write a command that lists all users in the /etc/passwd file whose name starts with a vowel and who are assigned the POSIX shell ( /usr/bin/sh ).

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