Hi All,
I desist

I ma trying to install Gnome Sensors applet from a tarball file (sensors-applet-2.2.5.tar.gz) and I do not know how to do it. I do not know how to use apt-get. It does not come out well. I have read in Ubuntu help, search in google, and all that I do does not work. I do not get nothing from the command “./configure” too.
I post you some outputs:
pablo@pablo-laptop:~$ apt-get install sensors-applet-2.2.5.tar.gz
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?
pablo@pablo-laptop:~$ sudo apt-get install sensors-applet-2.2.5.tar.gz
[sudo] password for pablo:
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package sensors-applet-2.2.5.tar.gz
pablo@pablo-laptop:~$ cd ~/Downloads
pablo@pablo-laptop:~/Downloads$ sudo apt-get install sensors-applet-2.2.5.tar.gzReading package lists... Done
Building dependency tree
Reading state information... Done
E: Couldn't find package sensors-applet-2.2.5.tar.gz
Some extra information: The readme file says:
Debian, Fedora, Ubuntu and most standard distro users will need to do a
./configure --prefix=/usr
to ensure proper installation within the correct path.
To enable support for NVIDIA GPUs GNOME Sensors Applet requires the
standard X11 headers as well as libNVCtrl (supplied by nvidia-settings),
and needs to be compiled with support for NVIDIA GPUs as:
./configure --with-nvidia
If your X11 headers are in a non-standard location, these can also be
specified as:
./configure --with-nvidia --with-x11=PATH_TO_X11_LIBRARIES
where PATH_TO_X11_LIBRARIES is the path to your X11 libraries
(such as /usr/include/X11), although in most cases this should not
be needed.