Current directory in window title; sup'd up 'cd' command.

.bashrc

# Put the CWD in the window title.
function chtt {
	echo -en "\033]2;$@\007"
}
export PROMPT_COMMAND='chtt $(pwd)'
# Put the CWD in the window title.
function chtt {
	echo -en "\033]2;$@\007"
}
export PROMPT_COMMAND='chtt $(pwd)'


#
# Sup'd up cd command.
#
# ZSH style replacement
function cdx()
{
	if [[ "$#" == 2 ]]
	then
		cwd="$(pwd)"
		nwd="${cwd%${1}*}${2}${cwd##*${1}}"
		echo "${nwd}"
		cd_save_hist "${nwd}"
	else
		cd_save_hist $@
	fi
}
# Expand path for command history.
function cd_save_hist() {
	if [ -z "$1" ]
	then
		d="$HOME"
	else
		d="$1"
	fi
	builtin cd "$d"
	dp=$(pwd)
	history -s cd ${dp}
}
alias cd=cdx
alias cd0='builtin cd'