Getenv
Overview
Gets the value of an environment variable
Method to return a string within a environment variable.
string getenv(string str)
It can be used to retrieve a variable that has been previously stored by the setenv function.
A variable defined at run time with the setenv function can be accessed at any time inside or outside the context of the function.
Usage
getenv ("string")
Examples
- Getting the value of the PATH environment variable and putting it into the variable "result".
string result; result = getenv("Path");setenv("myVar", "myValue");
printf("%s\n", getenv("myVar"));
printf("%s\n", getenv("COMPUTERNAME"));
printf("%s\n", getenv("NX_ROOT"));
Results
This func will return the string value of the environment variable defined informed in string.
Getenv - SDU
Daniel Bighelini