TLeconte acars for Raspberrypi

Anyine here well versed on the install?

I’ve been following the instructions shown here;
http://www.satsignal.eu/raspberry-pi/acars-decoder.html

getting stuck on the second step where it says;
sudo apt-get install librtlsdr

getting an error there like, not found or something to that effect.

 

Ok, that worked.
I´m now stuck at the next step, running the decoder, where I´m asked to enter the following;
./acarsdec -p -8 -r 0 131.525 131.550 131.725 131.825

in return I get;
bash: ./acarsdec: No such file or directory.

If I retrace back to step 2; ¨
Downloading and compiling the multi-channel ACARS decoder
when I copy and paste ¨mkdir acars, I get;
mkdir: cannot create directory ‘acars’: File exists.

 

When I enter the command;
cd acarsdec
I get;
bash: cd: acarsdec: No such file or directory.
It ought to be there...when I click on the file manager, under ¨pi¨, the very first folder is called ¨ acars ¨, and it has another folder named ¨ acarsdec ¨.
What´s going on?

 

Since then, I just cloned your image to an sd card and am using that on another pi dedicated to ads-b. This other pi, I want to use it for Acars with an RTL2832 dongle I had laying around.

 

sud worked for nano run-acars and chmod +X run-acars, but, not for ./run-acars

[email protected]:~ $ cd acarsdec
bash: cd: acarsdec: No such file or directory
[email protected]:~ $ cd acars
[email protected]:~/acars $ sudo nano run-acars
[email protected]:~/acars $ sudo chmod +X run-acars
[email protected]:~/acars $ ./run-acars
bash: ./run-acars: Permission denied
[email protected]:~/acars $ sudo ./run-acars
sudo: ./run-acars: command not found
[email protected]:~/acars $

 

Yes. I tried it again, from the top;

[email protected]:~ $ cd acarsdec
bash: cd: acarsdec: No such file or directory
[email protected]:~ $ cd acars
[email protected]:~/acars $ sudo nano run-acars
[email protected]:~/acars $ sudo chmod +X run-acars
[email protected]:~/acars $ ./run-acars
bash: ./run-acars: Permission denied
[email protected]:~/acars $ sudo ./run-acars
sudo: ./run-acars: command not found
[email protected]:~/acars $ sudo chmod +x run-acars
[email protected]:~/acars $ sudo ./run-acars
./run-acars: 1: ./run-acars: ./acarsdec: Permission denied
[email protected]:~/acars $ sudo nano run-acars
[email protected]:~/acars $ sudo chmod +x run-acars
[email protected]:~/acars $ sudo ./run-acars
./run-acars: 1: ./run-acars: ./acarsdec: Permission denied
[email protected]:~/acars $

 

Umm, I´m doing this from the pi. Don´t know how to post the contents. I can tell you, though, the tree is like this;
pi>acars>acarsdec>no subfolder.

Going to take a pic off the screen and upload it.