tag

#scope

3 posts

Shell & TerminalDeep Dive October 3, 2026 7 min read

Bash Local Variables: Dynamic Scope, Shadowing, and Function Boundaries

Understand Bash local-variable dynamic scope, shadowing, recursive functions, and helper contracts to prevent hidden coupling in reusable shell code.

#bash#functions#local-variables

Shell & TerminalDeep Dive October 3, 2026 8 min read

Fish Universal Variables: Persistent State, Scope Precedence, and Exports

Operate Fish universal variables safely across shells and restarts, diagnose scope precedence, and separate persisted Fish state from child-process environments.

#fish#variables#environment

Shell & TerminalDeep Dive October 3, 2026 7 min read

PowerShell Scope Resolution: Script, Module, Global, and Private State

Predict PowerShell variable and function lookup across child scopes, script files, modules, dot-sourcing, and jobs without accidental global state.

#powershell#scope#modules