Changes

<li>Install <code>the '''nled</code> ''' application using '''yum'''. Record this command in your lab log-book.</li> <li>Issue this command: <code>'''yum info cups'''</code></li></ol> {{Admon/tip|Problems Encountered When Running Yum Command|Sometimes students may experience problems when performing updates when using the '''yum''' command. Sometimes there may other processes that are running the yum application: you can check for this by issuing the <code>'''ps aux'''</code> command, and kill the process. Also, it is highly recommended to issue the command: <code>'''yum clean all'''</code> to perform a reset and clean up repository data.}} 

<li value="8">Based on the result, do you think that cups is a useful package for your system? If not, try removing it. <li>Unused and unneeded software can present a security risk and ties up disk space needlessly. Find at least 4 other packages that you're not using on your system, and remove them. Be careful to ensure that removing those packages does not also remove other software that you do need.</li>