File Management
---------------

.. index:: diag;diag disk
.. index:: system;system download
.. index:: app;app install
.. index:: app;app list
.. index:: app;app upgrade

Each user has a unique home directory in which local files can be stored.  
It is the user's responsibility to manage the disk space used by these 
files.  

The command **diag disk** displays the disk usage. Files in the user's 
directory are displayed using the standard **ls** command, and deleted with
**rm**.

New applications or upgrade packages are uploaded to the platform user using
**scp** or **sftp**, for example **scp <filename> platform@192.168.0.1:**
on the remote Unix file server. Refer to Network URI Specification for
usage. If **sftp** or **ftp** is used, the following FTP servers are
supported:

* OpenSSH for Unix or Linux based systems
* Titan SFTP and Cygwin (which is OpenSSH based) for Windows based systems.

A **sftp** or **scp** of files to |VOSS-4-UC| must be done in the ``media``
directory (``/opt/platform/admin/home/media``), which is a writable directory.

Alternatively a downloadable URL can be 
downloaded directly on the |VOSS-4-UC| system using **system download 
<URL>** and the downloaded file is placed in the platform user's directory, 
For example: **system download http://myserver/path/myfile.iso**

Individual applications are installed using **app install <filename>.script**.
For details, see :ref:`installing-applications`.
A list of available applications and versions is displayed using the
command **app list**.  

ISO packages include all the individual packages required for upgrading.  
Upgrade the system using **app upgrade <filename>.iso**. Alternatively, the 
ISO package file system can be mounted with the system **mount** command, and 
the individual applications are visible under the media directory, and 
visible via the **app list** command.


.. |VOSS-4-UC| replace:: VOSS-4-UC
.. |Unified CM| replace:: Unified CM