This is my geek blog. I am Nick Bair, a Linux user striving for proficiency in all areas of computing–setup and administration, networking, programming, security, and so on.


I use this blog to share things of interest with other Linux users. When I learn something new or do something noteworthy, I often find myself thinking, “I should write that down for next time.” The rationale for this blog is that I can write those things down in a place where they’ll not only be there for me next time, but also for everybody else who might need them.

The subject is broad–Linux & open source–and this is probably not the kind of blog that people want to follow. After all, what are the chances that someone out there is struggling with psnup at the exact time that I write about it? And if they’re not struggling with it, what are the chances that they’ll want to read about it at that time? No, I don’t suppose many folks will follow this blog. But my obscure psnup use case will be there for them when they need it–via a web search. And it will be there for me the next time I need it.

What does the name mean?

cat is short for concatenate, and is the command used in UNIX-based systems to do just that–concatenate files and print the result to standard output. More often than not it is used to view the contents of a single file.

/dev/blog is a non-existent device node in the Linux virtual filesystem, a key element of UNIX-based OSes that maps device drivers to files so that other processes can interface with them in a standard way.

So, then, if the device node /dev/blog were to actually exist, it would point to a weblog, and one could view its contents by typing cat /dev/blog at the command prompt ($).

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