Module std::env

Inspection and manipulation of the process's environment.

This module contains functions to inspect various aspects such as environment variables, process arguments, the current directory, and various other important directories.

There are several functions and structs in this module that have a counterpart ending in os. Those ending in os will return an OsString and those without will be returning a String.

Modules

consts

Constants associated with the current target

Structs

Args	An iterator over the arguments of a process, yielding a String value for each argument.
ArgsOs	An iterator over the arguments of a process, yielding an OsString value for each argument.
JoinPathsError	The error type for operations on the PATH variable. Possibly returned from the env::join_paths function.
SplitPaths	An iterator that splits an environment variable into paths according to platform-specific conventions.
Vars	An iterator over a snapshot of the environment variables of this process.
VarsOs	An iterator over a snapshot of the environment variables of this process.

Enums

VarError

The error type for operations interacting with environment variables. Possibly returned from the env::var function.

Functions

args	Returns the arguments which this program was started with (normally passed via the command line).
args_os	Returns the arguments which this program was started with (normally passed via the command line).
current_dir	Returns the current working directory as a PathBuf.
current_exe	Returns the full filesystem path of the current running executable.
home_dir	Returns the path of the current user's home directory if known.
join_paths	Joins a collection of Paths appropriately for the PATH environment variable.
remove_var	Removes an environment variable from the environment of the currently running process.
set_current_dir	Changes the current working directory to the specified path.
set_var	Sets the environment variable k to the value v for the currently running process.
split_paths	Parses input according to platform conventions for the PATH environment variable.
temp_dir	Returns the path of a temporary directory.
var	Fetches the environment variable key from the current process.
var_os	Fetches the environment variable key from the current process, returning None if the variable isn't set.
vars	Returns an iterator of (variable, value) pairs of strings, for all the environment variables of the current process.
vars_os	Returns an iterator of (variable, value) pairs of OS strings, for all the environment variables of the current process.