linux/.config/bash/module/Cd.sh

# CD (back to) directory.
# Goes to the exact-match dir first. If no exact match found, it finds first directory that contains the input (case-insensitive).
# Usage: cdd <DIR>
function cdd() {
	local target="${1}"

	if [[ "${target}" = "" ]]; then
		help cdd
		return 2
	fi

	local array=($(_cdd_directories))
	local result

	# Check for exact match ELSE look for containing.
	if _contains ${target} ${array[@]}; then
		local current="${PWD%/*}"
		result="${current%\/$target\/*}/${target}"
	else
		# Make search case-insensitive.
		shopt -s nocasematch

		# Find dir name that contains input.
		local found=1
		for (( idx=${#array[@]}-1 ; idx>=0 ; idx-- )); do
			dir="${array[idx]}"
			[[ "${dir}" =~ "${target}" ]] && found=0
			[[ ${found} = 0 ]] && result="/${dir}${result}"
		done

		# Clean-up???
		shopt -u nocasematch
	fi

	# Go there!
	if [[ "${result}" != "" ]]; then
		echo "${result}"
		cd "${result}"
	else
		return 1
	fi
}

# Get list of all parent dirs.
function _cdd_directories() {
	local array
	IFS='/' read -r -a array <<< "${PWD}"
	array=("${array[@]:1}")
	unset array[-1]
	printf "%s\n" "${array[@]}"
}

function _comp_cdd() {
	local IFS=$'\n'
	local dirs=($(_cdd_directories))
	_autocomplete_first ${dirs[@]}
}

complete -o nosort -o filenames -F _comp_cdd cdd