I have:
#!/usr/bin/env node console.log("It works!"); I learned that env finds the node program and interprets it with node. I checked that env exists in /usr/bin.
When I call node itworks.js it works and outputs It works!. However, from what I understand, I should just be able to call itworks.js without node due to the shebang. But when I make this command it says -bash: itworks.js: command not found.
Could someone help me get the shebang to work?
First of all you need to make the file executable:
chmod +x itworks.js Then you need to call it by specifying the path as well. Either:
/where/it/is/on/disk/itworks.js or:
./itworks.js 
The reason for :
-bash: itworks.js: command not found is because bash looks for programs in directories in the PATH environment variable when you do not say where the file is - it does not look in the current directory unless you tell it.
You could update the PATH variable with the current directory shortcut ., but that can be a security risk, so most run the program like this:
./itworks.js Of course if you put your scripts all in one directory then you could add that to PATH in one of your start-up files. For example, if you had a directory called bin in your home directory that held your scripts:
PATH=$PATH:"$HOME/bin" You also need to add the execute permissions to the script:
chmod u+x itworks.js The u indicates that we only give permission for the current user to execute this file. If we omit the u then anyone can run it.
./itworks.jsfrom within the directory where the file isbashorterminal).