Prompt not displaying Hostname for AIX's KSH

Question

Similar to question 1171663, AIX appears to not have the $HOSTNAME option available. $hname and $hostname are also non-existent. Other than doing the following within .profile -

export HOSTNAME=`hostname`

Is there an official manner where AIX users should be capable of getting the proper results when using:

PS1="${HOSTNAME}:\${PWD##*/} \$ "

Answer 1

Haven't tried it, but for the hostname - can't you mix your first example with your second?

PS1="`hostname`:\${PWD##*/} \$ "

Not sure about PWD bit though?

Answer 2

Try
export HOSTNAME=`uname -n`