os

type Cmd interface {
	Args() []string
	Executable() (string, error)
	Exit(code int)
	Getwd() (string, error)
}

type DirEntry = os.DirEntry

type Env interface {
	Clearenv()
	Environ() []string
	Expand(s string, mapping func(string) string) string
	ExpandEnv(s string) string
	Getenv(key string) string
	IsPathSeparator(c uint8) bool
	LookupEnv(key string) (string, bool)
	Setenv(key, value string) error
	TempDir() string
	Unsetenv(key string) error
	UserCacheDir() (string, error)
	UserConfigDir() (string, error)
	UserHomeDir() (string, error)
}

type File interface {
	fs.File
	io.Closer
	io.ReaderAt
	io.Seeker
	io.Writer
	io.WriterAt
	io.WriterTo
}

type FileInfo = os.FileInfo

type FileMode = os.FileMode

type Fs interface {
	CopyFS(dir string, fsys fs.FS) error
	Chdir(dir string) error
	Chmod(name string, mode FileMode) error
	Chown(name string, uid, gid int) error
	Chtimes(name string, atime, mtime time.Time) error
	Create(name string) (File, error)
	CreateTemp(dir, pattern string) (File, error)
	DirFS(dir string) fs.FS
	Lchown(name string, uid, gid int) error
	Link(oldname, newname string) error
	Lstat(name string) (FileInfo, error)
	Mkdir(name string, mode FileMode) error
	MkdirAll(path string, mode FileMode) error
	MkdirTemp(dir, pattern string) (string, error)
	Open(name string) (File, error)
	OpenFile(name string, flag int, perm FileMode) (File, error)
	OpenInRoot(dir, name string) (File, error)
	OpenRoot(name string) (*Root, error)
	ReadDir(name string) ([]DirEntry, error)
	ReadFile(name string) ([]byte, error)
	Readlink(name string) (string, error)
	Remove(name string) error
	RemoveAll(path string) error
	Rename(oldpath, newpath string) error
	SameFile(fi1, fi2 FileInfo) bool
	Stat(name string) (FileInfo, error)
	Symlink(oldname, newname string) error
	Truncate(name string, size int64) error
	WriteFile(name string, data []byte, perm FileMode) error
}

type Id interface {
	Getegid() int
	Geteuid() int
	Getgid() int
	Getgroups() ([]int, error)
	Getuid() int
}

type LinkError = os.LinkError

type Net interface {
	Hostname() (name string, err error)
}

type OsFile = os.File

type PathError = os.PathError

type ProcAttr = os.ProcAttr

type Process = os.Process

type ProcessState = os.ProcessState

type Root = os.Root

type Signal = os.Signal

type Stdio interface {
	Stderr() io.Writer
	Stdin() io.Reader
	Stdout() io.Writer
	Pipe() (r io.Reader, w io.Writer, err error)
}

type Sys interface {
	Getpagesize() int
	Getpid() int
	Getppid() int
}

type SyscallError = os.SyscallError