ммм _hostname_@ не user? или может hostname.serv.net.ru?
если второе - domain или search в resolv.conf. Курите man resolv.conf
что нужно и где прописать чтобы не набирать постоянно
host...@serv.net.ru, указывая только hostname?
PS1 вроде...
Да, ман баша говорит, что PS1
PS1 The value of this parameter is expanded (see PROMPTING below) and used as the primary prompt string. The default value is ``\s-\v\$ ''.
PS2 The value of this parameter is expanded as with PS1 and used as the secondary prompt string. The default is ``> ''.
PS3 The value of this parameter is used as the prompt for the select command (see SHELL GRAMMAR above).
PS4 The value of this parameter is expanded as with PS1 and the value is printed before each command bash displays during an execution trace. The first character of PS4 is repli‐ cated multiple times, as necessary, to indicate multiple levels of indirection. The default is ``+ ''.