Command not found-error

Hello, I just instealled Ubuntu Mate for my Raspberry Pi and tried to execute an application I downloaded called Collidoscope. The terminal keeps saying"command not found". I have run this application before on the NOOBS distro for rp3, I don’t understand why it isn’t working on this distro. I am the administrator and I am in the right directory and the application has been changed to allow for permission to run.

Any ideas or suggestions? Is this some kind of new safety feature that prevents non-package installed software from running?

Hi @jedbeans,

what is the command?, are you running it as “sudo”?:

https://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjxgOz8wo3XAhXKVxoKHdSWB4kQFggtMAA&url=https%3A%2F%2Fcode.soundsoftware.ac.uk%2Fattachments%2Fdownload%2F2110%2FCollidoscope%20Software%20instructions.pdf&usg=AOvVaw2lBiqJT9useMhpUEm8LL_R

Linux looks for commands in dirs that are in the $PATH env var, it will never ever try to launch a command that is in the current dir unless you specifically put the path to it. So, when you’re in its directory, do you run your command like this?

./name-of-the-command

(. being the current dir, being the parent dir; you can also put the complete path instead.)