QUESTION 11 You have a bunch of text files in your home directory, and you are t

Question

QUESTION 11

You have a bunch of text files in your home directory, and you are trying to find which ones contain the name "Backman". You are not certain if the name is all lowercase, has only the first letter capitalized, or is all caps.

What command would you type to search within all the files in your current working directory for the name "Backman", and ignore case?

grep * [BACKMAN]

grep -c * Backman

grep -i backman *

find -i * backman

QUESTION 12

What is the traditional name of the superuser or most powerful account in Unix?

manager

domain administrator

supervisor

root

QUESTION 13

How would you view the last 50 lines of a long text file named "Homer.txt"?

more -c 50 Homer.txt

tail Homer.txt | wc -l 50

grep 50 Homer.txt

tail -n 50 Homer.txt

  

QUESTION 14

Which command would delete all files in your current directory that have a filename that is exactly three letters long which ends with the letter t?

rm ??t

rm ???t

rm [3]t

rm -r *t*

  

QUESTION 15

In the vi text editor, which key sequence will delete the current line while in command mode?

x

dl

dd

ZZ

QUESTION 16

In the vi text editor, which key sequence will bring you to the end of the current line while in command mode?

L

$

l

e

  

QUESTION 17

In the vi text editor, which sequence of commands will copy the current line and past a copy of it below? (go ahead and try these to find out!)

"c" then "v"

"yy" then "p"

"C" then "p"

"D" then "p"

QUESTION 18

Which commands will get you out of the vi text editor without saving your changes?

ESC :z

/quit

ESC :nc

ESC :q!

QUESTION 19

On debian-based systems, which command will list currently installed software packages?

apt-get -l

dpkg -l

list-packages

pkg --list

QUESTION 20

Match the package manager to the operating system/distribution

rpm/yum

deb/apt-get

pkg

rpm/zypper

openSUSE

FreeBSD 10

Redhat

Ubuntu

a.

grep * [BACKMAN]

b.

grep -c * Backman

c.

grep -i backman *

d.

find -i * backman

Explanation / Answer

11.C.ls|grep -i backman * wi fetch -i means ignore case

grep -c means gives count

12.D.root

13.D.tail -n 50 Homer.txt

tail command is used for last and -n for lines

14. A.rm ??t

Wildcard ? for one char * for multiple so ?? and ends in t

rm ??t

15.C

ndd will delete the line under the cursor nlines from cursor position

16.B

17.

0 move to beginning of the current line $ move to end of line H move to the top of the current window (high) M move to the middle of the current window (middle) L move to the bottom line of the current window (low)

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