11.20 srfi.98 - Accessing environment variables ¶

Module: srfi.98 ¶

This srfi defines a portable way to access the underlying system’s environment variables. Gauche supports such procedures built-in (see Environment inquiry), but portable programs may want to use srfi API instead.

Function: get-environment-variable name ¶

[SRFI-98]{srfi.98} Returns a string value of an environment variable named by a string name. If the named environment variable doesn’t exist, #f is returned.

This is equivalent to sys-getenv.

(get-environment-variable "PATH")
  ⇒ "/bin:/usr/sbin:/usr/bin"

Function: get-environment-variables ¶

[SRFI-98]{srfi.98} Returns an assoc list of the name and the value of each environment variable.

This is equivalent to sys-environ->alist without the optional argument.

(get-environment-variables)
  ⇒ (("PATH" . "/bin:/usr/sbin:/usr/bin")
        ...)