How to find source and targhet of data transmissions

[Tom H]

On Sun, Mar 3, 2019 at 10:33 AM Bret Busby <bret.busby at gmail.com> wrote:
>
> :~$ less var/log/apt/history.log
> var/log/apt/history.log: No such file or directory
>
> :~$ ls var/log/apt
> ls: cannot access 'var/log/apt': No such file or directory

It's "/var" not "var".