how to start phalcon

it look like that installd phalcon corectly becuse i can see it in phpinfo but when i try to write in my terminal phalcon project blog it gives me -bash: phalcon: command not found.

Phalcon is only an extension for PHP, you will need to install Phalcon Devtools for a command line binary:

https://github.com/phalcon/phalcon-devtools/releases

i download the tar.gz file but how can i install it ?

do you have any idee why the permission denied when i type. phalcon-devtools/phalcon.php /usr/bin/phalcon ln: /usr/bin/phalcon: Permission denied

if you're in windows you need to add Phalcon's Devtools dir to your windows PATH config