pub fn args() -> Argsⓘ
Expand description
Returns the arguments that this program was started with (normally passed via the command line).
The first element is traditionally the path of the executable, but it can be set to arbitrary text, and might not even exist. This means this property should not be relied upon for security purposes.
On Unix systems the shell usually expands unquoted arguments with glob patterns
(such as *
and ?
). On Windows this is not done, and such arguments are
passed as-is.
On glibc Linux systems, arguments are retrieved by placing a function in .init_array
.
glibc passes argc
, argv
, and envp
to functions in .init_array
, as a non-standard
extension. This allows std::env::args
to work even in a cdylib
or staticlib
, as it
does on macOS and Windows.
Panics
The returned iterator will panic during iteration if any argument to the
process is not valid Unicode. If this is not desired,
use the args_os
function instead.
Examples
use std::env;
// Prints each argument on a separate line
for argument in env::args() {
println!("{argument}");
}
Run