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used in an if-then-else in case the default shell is ksh, not bash.
The $(basename ${0#-}) is handy to echo which shell and strip the dash some flavors put in front of "bash"
if [ $(basename ${0#-}) == "bash" ] ; then
export PS1='\[\e]0;\h \u \w\a\]\n\[\e[0;34m\]\u@\h \[\e[33m\]\w\[\e[0;32m\]\n\$ '
else
HOST=`hostname`
ESC=`echo "\033"`
BEL=`echo "\007"`
RAW=`echo "\r"`
export PS1='-${RAW}${ESC}]0;${HOST} ${USER}${BEL}-${ESC}[0;34m${USER}${ESC}[0m@${ESC}[0;34m${HOST%%.*}${ESC}[0;33m${ESC}[0m $ '
fi