Package os provides a platform-independent interface to operating system functionality.

Package exec runs external commands.

Package signal implements access to incoming signals.

Package user allows user account lookups by name or id.

Package path implements utility routines for manipulating slash-separated paths.

Package filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths.

Package plugin implements loading and symbol resolution of Go plugins.

Package reflect implements run-time reflection, allowing a program to manipulate objects with arbitrary types.

Package regexp implements regular expression search.

Package syntax parses regular expressions into parse trees and compiles parse trees into programs.