Provided by:
passwd_4.1.4.2-1ubuntu2_i386 
NOME
chsh - cambia la shell di login
SINOSSI
chsh [opzioni] [LOGIN]
DESCRIZIONE
The chsh command changes the user login shell. This determines the name
of the users initial login command. A normal user may only change the
login shell for her own account, the superuser may change the login
shell for any account.
OPZIONI
Il comando chsh accetta le seguenti opzioni:
-h, --help
Mostra un messaggio di aiuto ed esce.
-s, --shell SHELL
Il nome della nuova shell di login dellutente. Lasciando questo
campo vuoto si fa in modo che il sistema selezioni la shell di
connessione predefinita.
If the -s option is not selected, chsh operates in an interactive
fashion, prompting the user with the current login shell. Enter the new
value to change the shell, or leave the line blank to use the current
one. The current shell is displayed between a pair of [ ] marks.
NOTA
The only restriction placed on the login shell is that the command name
must be listed in /etc/shells, unless the invoker is the superuser, and
then any value may be added. An account with a restricted login shell
may not change her login shell. For this reason, placing /bin/rsh in
/etc/shells is discouraged since accidentally changing to a restricted
shell would prevent the user from ever changing her login shell back to
its original value.
FILE
/etc/passwd
informazioni sugli account utente.
/etc/shells
#-#-#-#-# #-#-#-#-# Elenco delle shell di login valide. #-#-#-#-#
#-#-#-#-# Elenco delle shell di login ammesse.
/etc/login.defs
Shadow password suite configuration.
VEDERE ANCHE
chfn(1), login.defs(5), passwd(5).