getenv

#getenv

##Syntax getenv ( symbol : string ) : string

##Description The getenv function is used to access the environment string whose name is symbol. These strings are determined by the shell (command processor) or the program that caused your program to run. See also the nargs and fetcharg functions.

##Example On a PC, this retrieves the environment variable USERLEVEL and prints extra instructions if USERLEVEL had been set to NOVICE. USERLEVEL can be set to NOVICE with the command SET USERLEVEL = NOVICE in the autoexec.bat file or in any batch file.

    const userLevel : string
    userLevel := getenv ("USERLEVEL")
        if userLevel = "NOVICE" then
        �           % put a set of instructions
    end if

##See also See also predefined unit sysmodule.html.