(vim) apply an ex command on the whole buffer

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%

(vim) apply a shell command (filter) on all lines matching a pattern

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:g/pattern/.!<shell command>

(vim) apply a substitution only on lines matching a pattern

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Use g and s in a standard way:

(vim) "delete" ex command

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d

(vim) "copy" ex command

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t

(vim) "move" ex command

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m

(vim) move all lines matching a pattern to the end of the buffer

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:g/pattern/m$

(vim) copy all lines matching a pattern to the end of the buffer

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:g/pattern/t$

(vim) apply a normal mode sequence of commands on all lines matching a pattern

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:g/<pattern>/normal <command(s)>

(vim) set a local mark here

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m<lowercase letter>

(vim) set a global mark here

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m<uppercase letter>

(vim) difference between local and global mark

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local marks: a-z and file-specific

(vim) jump to a mark

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'<letter>

(LW) summary of "Well-Kept Gardens Die By Pacifism" by Eliezer Yudkowsky

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censorship or at least a karma system where people do downvote are necessary for online gardens to remain high-quality.

(LW) "Well-Kept Gardens Die By Pacifism" by Eliezer Yudkowsky: why is this not obvious to everyone?

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because we don't see we're already protected by walls, like it's easy to be a nonviolent pacifist when the country is protected by the military and the city already has police

Cargo Cult Science: original example

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In the South Seas there is a Cargo Cult of people.  During the war they saw airplanes land with lots of good materials, and they want the same thing to happen now.  So they’ve arranged to make things like runways, to put fires along the sides of the runways, to make a wooden hut for a man to sit in, with two wooden pieces on his head like headphones and bars of bamboo sticking out like antennas—he’s the controller—and they wait for the airplanes to land.  They’re doing everything right.  The form is perfect.  It looks exactly the way it looked before.  But it doesn’t work.  No airplanes land.

Matthew Butterick's argument against adblockers

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<a href="https://practicaltypography.com/economics-year-one.html">https://practicaltypography.com/economics-year-one.html</a>

(vim) write selection to new file

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:<selection>w <filename>

(vim) apply Unix filter on entire file

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:%!command

(vim) on X11, register holding the contents of the text last highlighted with the mouse

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