What is Homeostat (or Sleep Homeostat)?

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Question
You have heard the terms homeostat and sleep homeostat. What do these terms mean?

Answer
“Homeostat (Sleep Homeostat): A neurobiologic structure or circuit that is believed to regulate sleep quality and quantity based on the amount and/or quality of prior wakefulness.” (Taken from page 151 of Cognitive Behavioral Treatment of Insomnia by Perlis et al.)

“Blessed are those drowsy ones: for they shall soon nod to sleep.” (Taken from page 38 of Thus Spake Zarathustra (Squid Classics 2017).)

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In GitLab, How Do You Find Only Files (not folders or projects) That Have “foo” in Their Content and Have File Extensions of .bar?

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Problem scenario
You are using the GitLab GUI. You want to find files that end with .bar and have the patter “foo” in the content. How do you find them?

Solution
Use the Search feature. Use this as the search term for a given Group in GitLab (with “Any” for the “Project”):

foo extension:bar

(Do not use “.bar”.)

The source of this is https://docs.gitlab.com.

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What States Have Double Taxation on Income for Remote Workers?

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Problem scenario
“People who work in a state they do not live in may be subject to income tax withholding for both states.” (This quote was taken from https://www.shrm.org/resourcesandtools/legal-and-compliance/employment-law/pages/hybrid-work-legal-challenges.aspx.)

You read that some states make the remote employee pay income tax in addition to other taxes where the employer is located. What states are these?

Answer
Arkansas,

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How Do You Troubleshoot the Error “req: Use -help for summary”?

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Problem scenario
You run a command like this:

sudo openssl req -newkey rsa:2048 -nodes -keyout contint.key -x509 -days 9999 contint.crt

You get this as the output: “req: Use -help for summary.”

What should you do?

Possible Solution #1
Use the “-out” flag between “9999” and “contint.crt”.

Possible Solution #2
Do you have an extra “-new” flag in your command?

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How Do You Troubleshoot “jdoe is not authorized to run that command as root”?

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Problem scenario
You failed to use visudo on a Red Hat or Debian distribution of Linux. You try to elevate your user to sudo and run a command but you get: “jdoe is not authorized to run that command as root.”

You forgot the root password. You cannot boot into rescue/recovery mode. How do you correct the /etc/sudoers file?

Solution
Run “pkexec” without quotes.

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What Is The Space Complexity when There Are Two Variables in a Program?

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Question
You have a program with two (or three) variables, but no other data structures. What is the space complexity?

Answer
O(1). An algorithm, as long as the number of variables is fixed, can have 1,000 variables and be said to have O(1) space complexity. The source is here:

https://stackoverflow.com/questions/43260889/what-is-o1-space-complexity …

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