C-x C-x is teleport for your mark.

C-x h is “select literally everything right now”!

How did i not know that you can make a c-style for loop in bash

$ for (( i=0; i<5; i++ ))
  do
      echo $i
  done

How to use a lightmeter with your digital camera in 2025!

Introducing Parsm: A Universal Structured Text Parser

When scientists and engineers created the UNIX system, they built utilities that each performed a specific task exceptionally well. Commands such as grep, awk, and sed have become the atoms of text and data processing workflows. However, today's computing landscape is dominated by …

Should you program like NASA?

Programming is a discipline that requires both speed and integrity. The best developers balance rapid iteration with careful checking, ensuring that their code is robust, maintainable, and adaptable over time. That’s where structured coding principles—like those found in the Power of Ten—may …

How to use ed

ed file.txt
1,$p         # Print all lines.
3d           # Delete line 3.
$s/foo/bar/g # Replace "foo" with "bar" in all lines.
w            # Save changes.
q            # Quit the editor.
i            # insert previous line
a            # append next line