Examples using... os.Setenv()

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Unsetenv in Go

by GoDoc Go os.Setenv os os.Unsetenv

Unsetenv unsets a single environment variable.

LookupEnv in Go

by GoDoc Go os.Setenv fmt.Printf fmt os os.LookupEnv

LookupEnv retrieves the value of the environment variable named by the key. If the variable is present in the environment the value (which may be empty) is returned and the boolean is true. Otherwise the returned value will be empty and the boolean will be false.

Getenv in Go

by GoDoc Go os.Setenv os.Getenv fmt fmt.Printf os

Getenv retrieves the value of the environment variable named by the key. It returns the value, which will be empty if the variable is not present. To distinguish between an empty value and an unset value, use LookupEnv.

ExpandEnv in Go

by GoDoc Go os.Setenv fmt fmt.Println os os.ExpandEnv

ExpandEnv replaces ${var} or $var in the string according to the values of the current environment variables. References to undefined variables are replaced by the empty string.

Set Environment Variable in Go

by yhuang Go os.Setenv os