bash script to go into a sub directory that matches a pattern

cdd.sh

# go into dir with a specific file in the subdirectory
function cdf() {
	f=$(dirname $(find . -iname "*$1*" -type f -print -quit 2>/dev/null | head -1)  2>/dev/null)
	if [ -z "$f" ]; then
		echo #'not found'
	else
		#echo "found in:" $f
		cd "$f"
	fi
}

# go into a specific dir anywhere below this
function cdd() {
	d=$(find . -iname "*$1*" -type d -print -quit 2>/dev/null | head -1)
	if [ -z "$d" ]; then
		echo #'not found'
	else
		cd "$d"
	fi
}

# go into dir with a specific file in the subdirectory. Uses regex and substitues . with .*
function cdfr() {
	pat=$1
	pat=${pat//./.*}
	f=$(dirname $(find . -regex ".*$pat.*" -type f -print -quit 2>/dev/null | head -1)  2>/dev/null)
	if [ -z "$f" ]; then
		echo #'not found'
	else
		#echo "found in:" $f
		cd "$f"
	fi
}

# go into a specific dir anywhere below this. Uses regex and substitues . with .*
function cddr() {
	#replace in between "."s with .*
	pat=$1
	pat=${pat//./.*}
	#echo $pat
	d=$(find . -regex ".*$pat.*" -type d -print -quit 2>/dev/null | head -1)
	if [ -z "$d" ]; then
		echo #'not found'
	else
		cd "$d"
	fi
}

# go into dir with a specific file in the subdirectory. Uses regex and substitues . with .*
function cfr() {
	pat=$1
	#replace . with .* - so we can give multiple parts
	pat=${pat//./.*}
	if [[ $pat != ^* ]]; then #if it begins with a '^', leave it as is
		pat=".*"$pat
	fi
	if [[ $pat != *$ ]]; then #if it ends with a '$', leave it as is
		pat=$pat".*"
	fi

	f=$(dirname $(find . -regex "$pat" -not -regex ".*git/.*" -not -regex ".*node_modules/.*" -not -regex ".*pkg/.*" -not -regex ".*google-cloud-sdk/.*" -not -regex ".*vendor/.*" -type f -print -quit 2>/dev/null | head -1)  2>/dev/null)
	if [ -z "$f" ]; then
		echo #'not found'
	else
		#echo "found in:" $f
		cd "$f"
		pwd
	fi
}

# i further customized it to my requirements working with golang and angular.
# also added capability to put ^ and $ at beginning and end.

# go into a specific dir anywhere below this. Uses regex and substitues . with .*
function cdr() {
	#replace in between "."s with .*
	pat=$1
	#replace . with .* - so we can give multiple parts
	pat=${pat//./.*}
	if [[ $pat != ^* ]]; then #if it begins with a '^', leave it as is
		pat=".*"$pat
	fi
	if [[ $pat != *$ ]]; then #if it ends with a '$', leave it as is
		pat=$pat".*"
	fi

	#d=$(find . -regex ".*$pat.*" -type d -print -quit 2>/dev/null | head -1)
	d=$(find . -regex "$pat" -not -regex ".*git/.*" -not -regex ".*node_modules/.*" -not -regex ".*pkg/.*" -not -regex ".*google-cloud-sdk/.*" -not -regex ".*vendor/.*" -type d -print -quit 2>/dev/null | head -1)
	if [ -z "$d" ]; then
		echo #'not found'
	else
		#echo "going to $d"
		cd "$d"
		pwd
	fi
}