sp;Stdlib.Bigarray.Genarray.t
&nbsp;&nbsp;val&nbsp;unlink&nbsp;:&nbsp;string&nbsp;-&gt;&nbsp;unit
&nbsp;&nbsp;val&nbsp;rename&nbsp;:&nbsp;src:string&nbsp;-&gt;&nbsp;dst:string&nbsp;-&gt;&nbsp;unit
&nbsp;&nbsp;val&nbsp;link&nbsp;:&nbsp;?follow:bool&nbsp;-&gt;&nbsp;src:string&nbsp;-&gt;&nbsp;dst:string&nbsp;-&gt;&nbsp;unit
&nbsp;&nbsp;val&nbsp;realpath&nbsp;:&nbsp;string&nbsp;-&gt;&nbsp;string
&nbsp;&nbsp;type&nbsp;access_permission&nbsp;=&nbsp;Unix.access_permission&nbsp;=&nbsp;R_OK&nbsp;|&nbsp;W_OK&nbsp;|&n