Category: XProc file and directory related steps (3.0) 
XProc steps that deal with files and directories. An XProc processor is not required to support these.
F
p:file-copy - Copies a file or directory.
p:file-create-tempfile - Creates a temporary file.
p:file-delete - Deletes a file or directory.
p:file-info - Returns information about a file or directory.
p:file-mkdir - Creates a directory.
p:file-move - Moves or renames a file or directory.
p:file-touch - Changes the modification timestamp of a file.