support short hostnames in xterm title

template/bash_profile.template.bash

@@ -26,6 +26,11 @@ export TODO="t"
 # Set this to false to turn off version control status checking within the prompt for all themes
 export SCM_CHECK=true
 
+# Set Xterm/screen/Tmux title with only a short hostname.
+# Comment this (or unset SHORT_HOSTNAME) to fall back on $HOSTNAME.
+
+export SHORT_HOSTNAME=$(hostname -s)
+
 # Set vcprompt executable path for scm advance info in prompt (demula theme)
 # https://github.com/djl/vcprompt
 #export VCPROMPT_EXECUTABLE=~/.vcprompt/bin/vcprompt