env - environment module .EX include "env.m"; env = load Env Env->PATH; getenv: fn(var: string): string; setenv: fn(var: string, val: string): int; getall: fn(): list of (string, string); clone: fn(): int; new: fn(): int; Env provides an interface to manipulate environment variables which may then be shared between processes. Getenv returns the value of the environment variable var passed as a parameter, or nil if the variable is not set. It does this by reading the contents of /env/ var. Setenv sets the value of the environment variable var to val. The value may be nil to unset the variable. It does this by writing the string val to /env/ var. The routine returns a negative number if it fails to set the variable for any reason. Getall returns all the variables in the current environment as a list of (variable, value) pairs. Clone copies the current environment and places the process in a new environment group. Changes now made to the environment will not affect the environment of other processes. New places the process in a new empty environment group. Changes made in this new environment will not affect other processes. /appl/lib/env.b env (1), sys-pctl (2), env (3)