B>unix:chmod</B> <EM>path integer </EM>[function]

<DL COMPACT>
<DT> 
<DD> 
changes access mode (permission) for <EM>path</EM>.
</DD>
</DL>
<BR>
<BR>

<A NAME="22629"></A>
<B>unix:chown</B> <EM>path integer </EM>[function]

<DL COMPACT>
<DT> 
<DD> 
changes the owner of the file <EM>path</EM>.
</DD>
</DL>
<BR>
<BR>

<P>

<A NAME="22640"></A>
<B>unix:isatty</B> <EM>(stream <SPAN CLASS="MATH"><IMG
 WIDTH="9" HEIGHT="32" ALIGN="MIDDLE" BORDER="0"
 SRC="manual-img5.png"
 ALT="$ \vert$"></SPAN> fd) </EM>[function