You can use the tty command to find out what terminal you are currently using in a Linux or Unix-like system. The tty command returns the name of the terminal that is connected to the standard input (stdin), standard output (stdout), and standard error (stderr) of the current process.
Here’s how you can use the tty command:
tty
This will print the name of the terminal you are currently using. The name of the terminal will typically start with /dev/ and will be followed by a device name such as tty, pts, or pts/1.
For example, if you are using a terminal window in a graphical interface, the tty command may return something like:
/dev/pts/1
This indicates that you are using a terminal emulator that is connected to the device /dev/pts/1.