sh: /usr/bin/xauth: not found

This error message indicates that the xauth command is not installed on your system or it is not located in the /usr/bin directory.

You can verify if xauth is installed on your system by running the following command:

which xauth

If xauth is not installed, you can install it by running the following command:

sudo apt-get install xauth

If xauth is installed but not located in the /usr/bin directory, you can locate it by running:

sudo find / -name xauth

Once you have located xauth, you can add its path to your system's PATH variable so that it can be found by other programs. For example, if xauth is located in /usr/local/bin, you can add the following line to your ~/.bashrc file:

export PATH=$PATH:/usr/local/bin