add tty display in prompt

bashrc

@@ -317,9 +317,10 @@ __my_prompt_function(){              # used by PS1
     # local svn=$(type svn >/dev/null 2>&1 && __try_exec __my_svn_ps1 [SVN:%s])
     test -f ~/.batterystatus && local battery="[Battery:$(cat ~/.batterystatus | sed -e 's`%`%%`g')]"
     local ip=$(ip-address [Addr:%s])
+    local tty=$(__try_exec tty | sed -e 's:/dev/::')
     # local battery=$(battery-state [%s] | sed -e 's`%`%%`g') # very slow
     printf " [${c1}${pwd}${cdef}<${c3}${oldpwd}${cdef}]${git}${svn}${battery}${ip}\n"
-    printf "${c2}${USER}@${HOSTNAME}${cdef} ${date} ${BASH} ${BASH_VERSION}\n"
+    printf "${c2}${USER}@${HOSTNAME}${cdef} ${tty} ${date} ${BASH} ${BASH_VERSION}\n"
     printf "shlv:${SHLVL} jobs:${jobnum} last:${lastreturn} "
 }