QUESTION 1

The following command prints out the first character of the text stored in the shell variable MYVAR:

echo "$MYVAR" | sed -e 's/.*\(.\)$/\1/'

True

False

20 points

QUESTION 2

Choose the correct output for each of the echo statements given the following:

STREET="1 University Ave"
CITY="Lowell"
STATE="MA"
ADDRESS="$STREET	NOTE: there should be a new line after the $STREET
$CITY, $STATE"

- A. B. C.	echo '$ADDRESS'
- A. B. C.	echo "$ADDRESS"
- A. B. C.	echo $ADDRESS

A.

$ADDRESS

B.

Prints the address as a single line	1 University Ave Lowell, MA

C.

1 University Ave	this the first line
Lowell, MA	This is the second line

30 points

QUESTION 3

Given the following shell variable assignments:

STREET="59 Lowes Way"

CITY="Lowell"

STATE="MA" 

ADDRESS='$STREET

$CITY, $STATE'

The command,

echo "$ADDRESS"

Will display the following:

59 Lowes Way

Lowell, MA

True

False

10 points

QUESTION 4

If the shell variable TESTME was defined as follows,

TESTME="0123456789"

The following command would echo 11

echo "$TESTME" | wc -c

True

False

20 points

QUESTION 5

Given the following commands:

P1="Hello world I am here"

P1=`echo "$P1" | tr '\t' ' ' | sed -e 's/[ ]//g'`

echo "$P1"

The result of the last echo statement will be

Hello world I am here

True

False

20 points

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