Features of the computer

Model
$\framebox{ \texttt{ \textcolor{red}{\bf sudo dmidecode -s system-manufacturer} } }$
will give me: ``LENOVO''
$\framebox{ \texttt{ \textcolor{red}{\bf sudo dmidecode -s system-product-name} } }$
will give me: ``1953DDU''

$\framebox{ \texttt{ \textcolor{red}{\bf sudo dmidecode -s system-version} } }$
will give me: ``ThinkPad T60''
Which version of Ubuntu am I using?
$\framebox{ \texttt{ \textcolor{red}{\bf cat /etc/issue} } }$ or better $\framebox{ \texttt{ \textcolor{red}{\bf cat /etc/lsb-release} } }$
IP address

$\framebox{ \texttt{ \textcolor{red}{\bf ifconfig -a} } }$
will give several details, but the IP address is under ``inet addr''.
Notice that you could also use the following website to automatically find your IP:
http://whatismyipaddress.com/
Memory, partitions, etc

With $\framebox{ \texttt{ \textcolor{red}{\bf cat /etc/fstab} } }$ we can see all details about the partitions.
With $\framebox{ \texttt{ \textcolor{red}{\bf free} } }$ we can see the memory use, as follows:
```
             total       used       free     shared    buffers     cached
Mem:       1546484    1329288     217196          0      19204     803812
-/+ buffers/cache:     506272    1040212
Swap:       995988      34760     961228
```
The first line indicates that, out of 1.5GB of RAM, 1.3GB is ``in use''. The next line shows us that while 1.3GB is being used, only 500MB of this is actually being used by applications; the rest is being used for buffers and cache. The most important part of this listing for assessing performance is the Swap line; this shows us that we are currently using some swap. The system is able to fit everything into physical memory without having to resort (too much) to slow, disk-based swap space.
The following two syntax give also some information on memory and partitions
$\framebox{ \texttt{ \textcolor{red}{\bf sudo fdisk -l /dev/sda} } }$
$\framebox{ \texttt{ \textcolor{red}{\bf sudo parted /dev/sda print} } }$
To force a disk check on next reboot
$\framebox{ \texttt{ \textcolor{red}{\bf sudo touch /forcefsck \&\& sudo reboot} } }$
To check badblocks
$\framebox{ \texttt{ \textcolor{red}{\bf sudo badblocks -n -s -v -c 10240 /dev/sda2} } }$ [where sda2 represents the partition where ubuntu is installed]

$\framebox{ \texttt{ \textcolor{red}{\bf sudo e2fsck -cc /dev/sda2} } }$ [where sda2 represents the partition where ubuntu is installed]
Sound

type $\framebox{ \texttt{ \textcolor{red}{\bf alsamixer} } }$ , if you get a windows with levels to move, then is working ok.
Install later $\framebox{ \texttt{ \textcolor{red}{\bf sudo aptitude install gnome-alsamixer} } }$
this will be installed in ``Applications/sound-video''.
How do I know what graphic card I have installed?

$\framebox{ \texttt{ \textcolor{red}{\bf lspci $\vert$ grep VGA} } }$

Webmaster: Christian E. Salas Eljatib, E-mail: christian.salas@yale.edu