ZVON > References > Haskell reference
Intro / Search / ZVON
| Indexes | Syntax | Prelude | Ratio | Complex | Numeric | Ix | Array | List | Maybe | Char | Monad | IO | Directory | >> System << | Time | Locale | CPUTime | Random

Module: System
Function: getEnv
Type: String -> IO String
Description: Computation getEnv var returns the value of the environment variable var. If variable var is undefined, the isDoesNotExistError exception is raised.
Related:

Example 1

Input: getEnv "HOME"

Output: "/home/nicmila"

Example 2

Input: getEnv "XXX"

Output: File or variable not found: XXX




_____________________________________________
Reference Search | Sitemap | XML Glossary       ZVON | Systinet




Related sites:
  • dotNet Slackers - Your latest resource for ASP.NET
  • Dotnet Spider - Outsourcing and Offshore software development in India
  • XML - Xselerator, XSL Editor, BizTalk Utilities, XML Tutorials, Learn XML
  • Planet Source Code - The largest public source code database on the Internet
Domain Names VoIP Internettelefonie DSL, SDSL, ADSL UNLIMITED Web Hosting by HostDepartment conference call service
answering service