How Do You Get PowerShell to Run Scripts?

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Problem scenario
One of the following apply to you.

Problem scenario #1
You try a PowerShell command but you get an error like this “The ‘Login-AzureRmAccount’ command was found in the module ‘AzureRM.profile’, but the module could not be loaded.”

OR

Problem scenario #2
You try a PowerShell command but you get an error like this:

Files\WindowsPowerShell\Modules\AzureRM.profile\5.8.2\AzureRM.Profile.psm1 cannot be
loaded because running scripts is disabled on this system.

…

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In Python How Do You Print Just The Values of The Two-dimensional List without The Quotes, Commas or Brackets?

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Problem scenario
In Python your program has a two-dimensional list. It prints out like this:

[’ ‘, ‘X’, ‘ ‘, ‘ ‘, ‘ ‘]
[’ ‘, ‘X’, ‘X’, ‘ ‘, ‘ ‘]
[’ ‘, ‘X’, ‘X’, ‘X’, ‘ ‘]
[’ ‘, ‘X’, ‘X’, ‘X’, ‘X’]

You want it to print out like this:

X
XX
XXX
XXXX

Solution
Assuming that there are n rows of your matrix (aka two-dimensional array),

…

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How Do You Troubleshoot a Java Compilation Error “class fooBar is public, should be declared public class…”?

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Problem scenario
You try to compile a java program, but you get this error:

hello.java:1: error: class HelloWorld is public, should be declared in a file named HelloWorld.java
public class HelloWorld {
^
1 error

What is wrong?

Solution
The .java file must have a name of “HelloWorld” like the public class in the error.

…

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How Do You Create a Puppet Manifest to Install Java?

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Problem scenario
You have Puppet agent and Puppet Master set up and configured to work together. You are are running open source Puppet 5.x on Ubuntu servers in AWS. You want to install Java on the Puppet agent nodes. You tried to use the Java module.

On the Puppet Master server, you ran this: puppet module install puppetlabs-java –version 2.2.0

This is your site.pp file:

class { ‘java’ :
package =’java-1.8.0-openjdk-devel’, …

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In Python How Do You Print Three Integers Separated by a Space on the Same Line?

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Problem scenario
You want to print three integers. You do not want to convert them to be part of a string. You want a space to separate each integer. How do you do this in Python?

Solution
Assuming your variables are x, y, and z, and they are integers, use a line like this:

print(x, y, z)

Here is a complete program that proves it works:

x = 5
y = 3
z = 100
print(x, …

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How Do You Write a Python Program to Download the Images of a Website?

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Problem scenario
You want to download pictures (e.g., .png, .jpeg etc.) from websites. How do you use Python to download such files?

Solution
Use this program with a subdirectory in the directory that this program resides to receive the picture files.

“””
dwldimages.py
Downloads all the images on the supplied URL, and saves them to the
specified output file (“/test/” by default)

Usage:
python dwldimages.py http://example.com/ /tmp/test/ # where /tmp/test/ is the directory you want to save the image files to. …

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How Do You Assign a Variable in Groovy to Be an Integer Value?

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Problem scenario
A Groovy program is returning an incorrect value for an integer variable. What is wrong?

Possible solution #1
Check the logic of your program. Use the println command to see the earliest point when this variable is assigned an incorrect value. This helps you pinpoint the problem.

Possible solution #2
Is the variable being assigned a number in quotes like this?

…

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How Do You Write a Java Program to Read in Letters and Numbers?

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Problem scenario
You want to create a basic Java program that can read alphanumeric input interactively. How do you write such a program?

Solution
1. Verify the “javac” command works. Run “man javac” to see the man page. If you do not get a man page, install the Java development tools. On a RedHat derivative, run this: sudo yum -y install java-devel

2.

…

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