Problem scenario
If there are multiple files named “foobar”, what would this Linux command do?
echo “ccc” $(sudo find / -name foobar)
Here are your options:
a. Send “ccc” to be the content of the first file found.
b. Send “ccc” to be the content of the each file found.
c. Send “ccc” to be the content of the last file found.
d.
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Continue reading “How Does Linux Handle Ambiguous Redirects?”
Problem scenario
In a preboot menu, you want to use your wireless keyboard. You want to select an option, but only the keyboard attached to the laptop works. What do you do?
Solution
Can you boot the laptop without a USB splitter attached? If a four-port USB splitter is plugged in, this may interfere in the preboot menu with your ability to use a wireless keyboard.
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Continue reading “When You Boot a Laptop, You Cannot Use a Wireless Keyboard; What Should You Do?”
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Continue reading “Blockchain Council’s Augmented Reality Offering”
Problem scenario
You try to start the Docker service (e.g., with sudo systemctl start docker). You get this error: “Failed to start docker.service. Unit docker.socket is masked”
What should you do?
Possible solution #1
sudo systemctl unmask docker.socket
sudo systemctl unmask docker.service
This solution was adapted from this blog.
Possible solution #2
Uninstall Docker.
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Continue reading “How Do You Fix “Failed to start docker.service. Unit docker.socket is masked”?”
Problem Scenario
You have some rectangular icon image files that are advertisements. You want to post them for your advertiser in your WordPress website. What should you do?
Possible Solution #1 (if you can provide CSS code)
1. Log into WordPress
2. Appearance -Themes
3. Find which theme is active and click “Customize”.
4. Click “Additional CSS”
5.
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Continue reading “How Do You Place Advertisement Banners in Your WordPress Website?”