# errno > Look up errno names and descriptions. > More information: . - Lookup errno description by name or code: `errno {{name|code}}` - List all errno names, codes, and descriptions: `errno {{[-l|--list]}}` - Search for code whose description contains all of the given text: `errno {{[-s|--search]}} {{text}}` - Search for code whose description contains all of the given text (all locales): `errno {{[-S|--search-all-locales]}} {{text}}`