Question

QUESTION 4

1. Which UNIX shell operator will perform which function?

   -       A.       B.       C.       D.    Append output to a file       -       A.       B.       C.       D.    !!       -       A.       B.       C.       D.    <       -       A.       B.       C.       D.    Neutralize a single metacharacter

   A. Re-direct input into a command string from a file B. \ C. Recall last command D. >>

10 points   

QUESTION 5

1. cd to the /etc directory.

   Execute the following command.

   ls -l au*.[mn]*

   The output is the following:

   -rw-r--r-- 1 root root 675 Jan 24 19:04 auto.master

   -rw-r--r-- 1 root root 524 Mar 22 2012 auto.misc

   -rwxr-xr-x 1 root root 1374 Mar 22 2012 auto.net

   This is exactly the output I was hoping for.

   What function are the [ ] performing?

   		They look good and balance the command string.
   		The uniquely match the m and n characters to ensure only the desired output is generated.
   		They neutralize the m and n characters to hide the output.
   		They were used by mistake and have no meaning.

10 points   

QUESTION 6

1. Create an alias called li. When executed it will generate a long listing of files including the file i-node numbers.

   Will the following alias do this?

   alias li='ls -li'

   True

   False

Answer 1

Please Note: I have answered the first Question and all of its sub-parts, according to Chegg Answering Guidelines. Please Re-Post for receiving answers on the other questions.

Q4. Answer)
The following UNIX shell operator will perform each of these functions:
A. Append output to a file - >>, >> character will append the output to the file and thus is used in Unix shell.
B. Neutralize a single metacharacter - \, the Backslash is used to Neutralize. That is any character which is following the backslash loses its special meaning.
C. Re-direct input into a command string from a file - <, The "<" character is used to redirect standard input from a file usually without a keyboard
D. Recall the last command - !!, Typing !! and pressing enter from the command line will recall and execute the last command on the command line for Unix.

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