getenv
getenv — get the value of an environment variable
Calling sequence
env=getenv(str [, rep] )
Parameters
| str | : character string specifying environment variable name rep : an optional character string. When this optional value is used, the function getenv returns the value rep when the environment variable str is not found. |
| env | : character string which contain the environment variable value |
Description
Return the value of an environment variable if it exists.
Examples
getenv('SCI')
getenv('FOO','foo')
