Windows vs Mac and other dev-environment notes
When programs exchange data with each other they need an agreed-upon notation. The four we meet most often in config files, API responses, CI workflows, and environment variables are JSON, YAML, TOML, and XML.
cmd.exe is the command processor on Windows NT-family systems. It debuted in 1993 with Windows NT 3.1 and ships with every Windows release. Since PowerShell arrived, cmd's role as an entry point for new code has shrunk,…
Developing on Windows often runs into "Linux-only tools" — Docker, certain CLIs, shell scripts, compilation environments. WSL2 raises a real Linux environment inside the same machine without dual-booting or a heavyweigh…
Even with the same language and the same code, the basics like paths, line endings, shells, and permissions shift once the operating system changes. Linux falls on the macOS side of this split (both are Unix-flavored).
Even for the same character, the bytes a computer stores depend on the era and environment. As a result, Korean text breaks or git diff fills with meaningless line changes.
A shell is the interpreter that takes user input and hands it to the operating system. On the same OS we can pick from several shells, each with slightly different syntax and capabilities.
Markdown is a lightweight markup language for writing structured documents while keeping the source readable as plain text. It shows up everywhere: dev docs, READMEs, issues, blogs, notes.
This is a short orientation for someone opening a terminal for the first time. Each OS uses a different shell, so the same task uses slightly different commands. There is no need to memorize them — keep the table nearby…
PowerShell is Microsoft's shell and scripting language. It pipes .NET objects rather than text, which gives it a different grain from the bash family.
The shell most often encountered on Unix-flavored systems is bash. Its roots trace back to sh (Bourne shell).
When a project targets users on Windows, macOS, and Linux all at once, the choice of tool for automation scripts becomes a recurring question. There is no single right answer — environment constraints and team familiari…