switching between terminals

Signed-off-by: Mattias Andrée <maandree@operamail.com>
about shells

Signed-off-by: Mattias Andrée <maandree@operamail.com>
mention bash.d

Signed-off-by: Mattias Andrée <maandree@operamail.com>
some shell things + text editors

Signed-off-by: Mattias Andrée <maandree@operamail.com>
typo

Signed-off-by: Mattias Andrée <maandree@operamail.com>
account management

Signed-off-by: Mattias Andrée <maandree@operamail.com>
EDITOR envvar

Signed-off-by: Mattias Andrée <maandree@operamail.com>