Returns the string value assigned to a system environment variable
(getenv variable-name)
Arguments
A string specifying the name of the variable to be read. Environment variable names must be spelled and cased exactly as they are stored in the system registry.
Return Values
A string representing the value assigned to the specified system variable. If the variable does not exist, getenv returns nil.
Examples
Assume the system environment variable ACAD is set to /acad/support and there is no variable named NOSUCH.
Command: (getenv "ACAD")
"/acad/support"
Command: (getenv "NOSUCH")
nil
Assume that the MaxArray environment variable is set to 10000:
Command: (getenv "MaxArray")
"10000"
The setenvfunction.
