There has been quite a few threads discussing Kevin's book but nothing that seems to address the issue I have.
In his 3rd edition, Chpt 2, p35 Kevin notes that to end a command prematurely i.e. if you have made a mistake then use the command \c at the end.
I am assured this will return me to the prompt
Yet every time I try it it closes the SQL command client entirely and I must log in again.

Has any else noticed this or is it something I am doing wrong?