Scripting Languages Comparison

Question 1

How do you assign variables in PowerShell?

Only language where its different

Answer 1

$varName=value

Question 2

How do you display a variable to terminal in Bash?

Answer 2

echo $varName

Question 3

How do you display a variable to terminal in PowerShell?

Answer 3

Write-Host $varName

Question 4

How do you display a variable to terminal in Ruby?

Answer 4

puts varName

Question 5

What are the comparison operators in Bash?

Answer 5

-eq (==), -ne (!=), -lt (), -ge (>=)

Question 6

What are the comparison operators in PowerShell?

Answer 6

-eq, -ne, -gt, -ge, -lt, -le

Question 7

What are the comparison operators in Ruby?

Answer 7

==, !=, >, >=,

Question 8

What are the comparison operators in Python?

Answer 8

==, != (<>), >, >=,

Question 9

What are the different kinds of loops in Bash?

Answer 9

For

Question 10

What are the different kinds of loops in PowerShell?

Answer 10

For, While, Do-While, Do-Until

Question 11

What are the different kinds of loops in Ruby?

Answer 11

while, until, for

Question 12

What are the different kinds of loops in Python?

Answer 12

for, while

Question 13

Flow Control in Bash

Answer 13

if condition
then
    commands
elif
    commands
else
    commands
fi

Question 14

Flow Control in PowerShell

Answer 14

if (condition) {
    statements
} elseif (condition) {
    statements
} else {
    statements
}

Question 15

Flow Control in Ruby

Answer 15

if condition then
    statements
elsif
    statements
else
    statements end

Question 16

Flow Control in Python

Answer 16

if condition:
    statements
elif condition:
    statements
else:
    statement

Question 17

How to input from the terminal in Bash?

Answer 17

Read –p “Prompt:” var

Question 18

How to input from the terminal in PowerShell?

Answer 18

$firstName = Read-Host –Prompt ‘Enter first name’

Question 19

How to input from the terminal in Ruby?

Answer 19

name = gets

Question 20

How to input from the terminal in Python?

Answer 20

Name = raw_input(‘Please enter your name’)

Question 21

Error handling in Bash

Answer 21

If [“$?’ = “o”] then

Question 22

Error handling in PowerShell

Answer 22

try {
Command
}
catch {
    errHandling
commands
}

Question 23

Error handling in Ruby

Answer 23

begin
    statements
rescue
    statements if error occurred
else 
    statement if no error 
end

Question 24

Error handling in Python

Answer 24

try:
    statements raise 
except:
    statements
    customErrorObject
finally:
    statements to clean up

Question 25

Arrays in Bash

Answer 25

bashArray = (val1, val2, val3)
For I in 1 2 3
Do
    echo
${bashArray[$i]}

Question 26

Arrays in PowerShell

Answer 26

$PSarray=@(1.3.5.7.9); 
for($i = o; $1 –lt $PSarray.Length; $i++)
{
$PSarray[$1]
}
Foreach ($element in $PSarray) {
    $element
}

Question 27

Arrays in Ruby

Answer 27

rubyArray = [“val1”, “val2”, “val3”]
print rubyArray[1]
print

Question 28

Arrays in Python

Answer 28

pythonArray = [10,20,30,40,50]
print(pythonArray[1])
len(pythonArray)