"vi" is a text editor that comes standard in almost all operating systems, except Windows.

Therefore, as long as you can use vi, you can do the least building, operating and maintaining systems.

However, vi is also notoriously difficult to understand and use.

Of course, it's also true that once you use it, there is no tool more useful than this, and it still has power users.

# By the way, I also have a total of 4 vi operations that I can use.

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About a year ago, I was in the process of transferring the technology of an application I had created on Raspberry pi to an internal business unit.

There were five members gathered there, including engineers in their 20s, 30s, and 40s, and the head of the department.

I was working on transferring the application to a Raspberry pi, which was brought in by the division, and giving a lecture on it.

I also had to rewrite the build information to make it more consistent with the network environment and other factors.

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It is the "manager" of the department, who understood my lecture deeply, and pointed out the errors in my operating procedures, was

When I was working on it, and just muttering to myself

Ebata: "Oh, shit! Didn't have "emacs" on it. "vi" isn't good for me"

the general manager said

"I'll rewrite it by "vi".

I was surprised when he offered to do so

Aside from skills of the general manager.

"All engineers in their twenties, thirties, and forties kept silent"

was that. I thought,

"It's like they've never even touched a UNIX command before"

Well, if you're a user of the system, I think it's safe to say "UNIX? What's that?"

But as an engineer who builds systems and provides services, I have to ask myself, "Is that really good enough?

I'm not sure I can judge it either -- maybe it's just "old man's blabbermouth".

Nevertheless, what I can say clearly is "If you can't use UNIX (Linux) commands, you can't run Raspberry pi".

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Incidentally, my companay motto is "Contribute to society through technology".

It would not be an exaggeration to say that this is the only link between the company and me.