Command not found - Ubuntu

[Former user]

I have been installed successfully, exported PATH but the command is not found. There is only this message, so I don't know how to continue.

[Adrian Reich]

Did you close the shell? Try opening the shell and trying the command again.

[Priscila Santos]

I did it. So I have installed again, and now I have a problem to put it on PATH, I got this error "bash: /.bash_profile: Permission denied", I tried with sudo before, but it's the same. I tried to run on the directory (that I have permission to execute), but it is not possible too.