moving file path from one directory to other

Hi all,

IF we used one file from particular location path. after completion our process how to transfer that file from current to another (desired) path locaiton.

ex:

DIR_INTERFACE_IN -

> /usr/sap/<sysid>/interface/in

then i need to move to the following path.

DIR_INTERFACE_ARCHIVE --> /usr/sap/<sysid>/interface/archive

is ther any function module. please send me .

waiting for reply.

thanks