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→LAB PREPARATION
| |[[Image:ssd.png|thumb|left|175px|<b>Solid State Drive</b><br>Minimum Size: 250GB]]
| [[Image:log-book.png|thumb|left|100px|<b>Lab Logbook</b><br>[[:Media:OPS245-Logbook-Online.doc|(lab 1Click Here to Download)]]]]
| style="padding-left:15px;" |Package Management
*'''Name:''' c7host
*'''Boot media / Installation:''' CentOS 7 Full Install DVD (image file)
:::Use the links on the [https://mirror.senecacollege.ca/centos/7/isos/x86_64/CentOS-7-x86_64-DVD-2009.iso Download at Seneca Lab]:::[OPS245 | Course https://mirror.netflash.net/centos/7.9.2009/isos/x86_64/CentOS-7-x86_64-DVD-2009.iso Download from Home Page]] to download the required ISO file.
*'''Disk space:''' 238GB
*'''CPUs:''' 1 CPU, 4 cores ('''Do not mix and match! Always use 1 CPU, and multiples of 2 for cores.''')
:'''Perform the Following Steps:'''
<ol>
<li>Install Check if python3 is installed on your Centos Host machine. Open a terminal and type:</li><code style="color:#3366CC;font-family:courier;font-size:.9em;margin-left:20px;font-weight:bold;">which python3</code><li>The output should of the previous command should show python3 is already installed. If it is not, install python3 on your Centos Host machine.</li>
<code style="color:#3366CC;font-family:courier;font-size:.9em;margin-left:20px;font-weight:bold;">
sudo yum install python3
<li>Add a line that will print out the heading '''System Report'''<br />
<code style="color:#3366CC;font-family:courier;font-size:.9em;margin-left:20px;font-weight:bold;">
print('System Report\n')
</code>
</li>
<li>Save your script and run it. Does it work?</li>
<li>You'll notice that the python script is currently sending its output to your terminal. Since we haven't covered how to write to a file yet, this is ok for now. Just use output redirection on the command line when you run the script to send the output to '''~/bin/pythonreport.txt'''.</li>
<li>Add Open your script in a text editor (like Vi) again, and add the following lines below the print statement:</li><pre style="color:#3366CC;font-family:courier;font-size:.9em;margin-left:20px;># Import the Operating System moduleimport os # Print a heading for the date command outputprint('Current Date:') # Call the date command using the os moduleos.system("date +'%A %B %d, %Y (%I:%M %p)'")</pre><li>Save your script and run it again. Observe the output. What do you think the os.system command did?</li><li>Based on the above example and output, add the extra commands for your python script to also output (with appropriate headings):
<ul>
<li>The hostname of the machine.</li>
<li>The kernel version.</li>
# Make certain that your '''c7host''' VM is running, open the Bash Shell terminal.<br><br>
# Change to the '''~/bin''' directory.<br><br>
#Download the checking script by issuing the following Linux command:<br><b><code><span style="color:#3366CC;font-size:1.2em;">wget https://wwwraw.dropboxgithubusercontent.com/sOPS245/labs/dofm3ivxu4m088zmain/lab1-check.bash</span></code></b><br><!--For Andrew's sections use this script instead:<br><b><code><span style="color:#3366CC;font-size:1.2em;">wget http://littlesvr.ca/ops245/lab1-check-andrew.bash</span></code></b>--><br>
# Give that downloaded shell script file execute permissions (for the file owner).<br><br>
# Run the shell script using '''sudo''' and if there are any warnings, make fixes and re-run shell script until you receive a "congratulations" message.<br><br>
# Define the term Virtual Machine.
# List the major screens (steps) in the installation of Centos7 CentOS 7 full install DVD.
# What key-combination is used to toggle the view of your running VM from "window-mode" to "full-screen-mode"?
# List the steps for setting SELinux to permissive mode.
