Just a basic programmer living in California

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Joined 1 year ago
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Cake day: February 23rd, 2024

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  • That’s a helpful one! I also add a function that creates a tmp directory, and cds to it which I frequently use to open a scratch space. I use it a lot for unpacking tar files, but for other stuff too.

    (These are nushell functions)

    # Create a directory, and immediately cd into it.
    # The --env flag propagates the PWD environment variable to the caller, which is
    # necessary to make the directory change stick.
    def --env dir [dirname: string] {
      mkdir $dirname
      cd $dirname
    }
    
    # Create a temporary directory, and cd into it.
    def --env tmp [
      dirname?: string # the name of the directory - if omitted the directory is named randomly
    ] {
      if ($dirname != null) {
        dir $"/tmp/($dirname)"
      } else {
        cd (mktemp -d)
      }
    }
    











  • Don’t say “acronym” when you mean “abbreviation”!

    “Acronym” specifically refers to an initialism that forms a new word. For example,

    • scuba (self-contained underwater breathing apparatus)
    • NASA (pronounced like a word - you don’t say “ehn eh ess eh”).

    It’s acro- (height) -nym (word) - a word that exists on top of / above other words.

    In contrast “NIH” is not an acronym because it isn’t pronounced or read as a word. It’s appropriate to say, “‘NIH’ is an abbreviation” or “‘NIH’ is an initialism”. But saying “‘NIH’ is an acronym” is wrong!




  • 1 cm is about the width of the tip of your pinky finger.

    1 m is about the distance from your nose to your fingertips if you hold your arm out, and extend your fingers.

    100 m is the length of the straight section of an athletic track, which is about the same length as a football field.

    1 mL is about the volume of the tip of your pinky finger.

    1 L is about 1 quart, which is half a carton of milk (unless you get milk in the smaller 1 quart size).

    The mile-to-km conversion is pretty close to 1½.

    The kg-to-pound conversion is two-and-a-bit.

    A difference of 1°C is close to a difference of 2°F.

    Edit: My milk comparison was wrong - I’ve corrected it.

    Edit: Of course by “m” I meant “mile”








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