<ckpun1978@gmail.comwrote in message news:1122231291.079387.48070@
Hi,

Let say I login from home to computer X in linux. What's the command
to use in the computer X (linux) to tell the name of my home PC?

'who' will tell you where it thinks you are logged in from.
Any resemblance between that and what your home PC calls itself
may depend on such things as DNS or hosts entries as well as
NAT and DHCP.

2005-07-29, 14:52(+08), spike:
[]
>Let say I login from home to computer X in linux. What's the command
>to use in the computer X (linux) to tell the name of my home PC?
[]

If the shell is tcsh, you may find it in $REMTEHST (if utmp
contains that information or the shell stdin is a socket (but
that generally means it's not an interactive shell)).

If not, you'll need to retrieve the information by yourself from
utmp (see who(1) output). You can also pass that information via
the TERM environment variable.

Like:

TERM=${TERM}:$(uname) telnet other-host

and in other-host .profile:

case $TERM in
*:*)
REMTEHST=${TERM#*:}
TERM=${TERM%%:*}
export TERM
;;
esac