@since: 2.5.0

Connects filesystem.

Checks if a file is readable.

Reads entire file into a string.

Checks if a file or directory is writable.

Reads entire file into an array.

Gets the file’s last access time.

Writes a string to a file.

Gets the file modification time.

Gets the current working directory.

Gets the file size (in bytes).

Changes current directory.

Sets the access and modification times of a file.

Changes filesystem permissions.

Creates a directory.

Gets the file owner.