diff --git a/.config/bash/module/name.sh b/.config/bash/module/name.sh
index 99f95a0..e815978 100644
--- a/.config/bash/module/name.sh
+++ b/.config/bash/module/name.sh
@@ -28,7 +28,7 @@ function name() {
 			ext=".${target##*.}"
 			name="${target%.*}"
 		fi
-		
+
 		# Files w/o extension support.
 		[[ "${ext#.}" = "${name}" ]] && ext=""
 
@@ -95,7 +95,7 @@ function name_hash() {
 		# hash the new name.
 		local hash=$(pv "${target}" | sha1sum | cut -d\  -f1)
 		new_name="${hash,,}${extension,,}"
-		
+
 		# prepare status.
 		local status="[${count}/${total}] ${target} -> ${new_name}"
 
@@ -111,7 +111,7 @@ function name_hash() {
 
 		# rename target.
 		mv -- "${target}" "${new_name}"
-		
+
 		if [[ ${?} != 0 ]]; then
 			echo -e "${color_bred}${status}: Failed.${color_default}"
 			((failed++))
@@ -209,7 +209,7 @@ function name_series() {
 
 		# rename target.
 		mv -- "${target}" "${new_name}"
-		
+
 		if [[ ${?} != 0 ]]; then
 			echo -e "${color_bred}${status}: Failed.${color_default}"
 			((failed++))
@@ -265,7 +265,7 @@ function name_manga() {
 
 		# rename target.
 		mv -- "${target}" "${new_name}"
-		
+
 		if [[ ${?} != 0 ]]; then
 			echo -e "${color_bred}${status}: Failed.${color_default}"
 			((failed++))
@@ -300,7 +300,7 @@ function name_ext() {
 		targets=($(ls --classify | grep -v /\$))
 		total=${#targets[@]}
 	fi
-	
+
 	# process.
 	for target in "${targets[@]}"; do
 		# increment count.
@@ -318,7 +318,7 @@ function name_ext() {
 
 		# rename target.
 		mv -- "${target}" "${new_name}"
-		
+
 		if [[ ${?} != 0 ]]; then
 			echo -e "${color_bred}${status}: Failed.${color_default}"
 			((failed++))
@@ -348,7 +348,7 @@ function name_prefix() {
 		targets=(${old}*)
 		total=${#targets[@]}
 	fi
-	
+
 	# Process.
 	for target in "${targets[@]}"; do
 		# Increment counter.
@@ -363,10 +363,10 @@ function name_prefix() {
 
 		# Warning on no change.
 		[[ "${target}" = "${new_name}" ]] && continue
-		
+
 		# Rename.
 		mv -- "${target}" "${new_name}"
-		
+
 		if [[ ${?} != 0 ]]; then
 			echo -e "${color_bred}${status}: Failed.${color_default}"
 			((failed++))
@@ -396,7 +396,7 @@ function name_postfix() {
 		targets=(*${old})
 		total=${#targets[@]}
 	fi
-	
+
 	# Process.
 	for target in "${targets[@]}"; do
 		# Increment counter.
@@ -411,10 +411,10 @@ function name_postfix() {
 
 		# Warning on no change.
 		[[ "${target}" = "${new_name}" ]] && continue
-		
+
 		# Rename.
 		mv -- "${target}" "${new_name}"
-		
+
 		if [[ ${?} != 0 ]]; then
 			echo -e "${color_bred}${status}: Failed.${color_default}"
 			((failed++))
@@ -444,7 +444,7 @@ function name_replace() {
 		targets=(*${old}*)
 		total=${#targets[@]}
 	fi
-	
+
 	# Process.
 	for target in "${targets[@]}"; do
 		# Increment counter.
@@ -459,10 +459,90 @@ function name_replace() {
 
 		# Warning on no change.
 		[[ "${target}" = "${new_name}" ]] && continue
-		
+
 		# Rename.
 		mv -- "${target}" "${new_name}"
-		
+
+		if [[ ${?} != 0 ]]; then
+			echo -e "${color_bred}${status}: Failed.${color_default}"
+			((failed++))
+		fi
+	done
+
+	if [[ ${failed} != 0 ]]; then
+		echo -e "${color_bred}Failed: ${failed}.${color_default}"
+		false
+	fi
+}
+
+# Fix numbering for numbered files. I.e if there are 10 items and some of them start without zero, then append zero to it. 1..10 -> 01..10.
+# Usage: name_fix_numbering [FILES]
+function name_fix_numbering() {
+	local IFS=$'\n'
+	local targets=("${@}")
+	local count=0
+	local total=${#}
+	local failed=0
+	local power=0
+
+	# All files by default.
+	if [[ "${targets[*]}" = "" ]]; then
+		targets=(*)
+		total=${#targets[@]}
+	fi
+
+	# Count leading zeroes.
+	local highest=0
+	for target in "${targets[@]}"; do
+		local digits=($(_parse_ints "${target}"))
+		local digit="${digits[0]}"
+		digit=$((10#${digit}))
+
+		[[ "${digit}" -gt "${highest}" ]] && highest="${digit}"
+	done
+
+	local i=${highest}
+	while [[ i -gt 0 ]]; do
+		((power++))
+		i=$((${i}/10))
+	done
+
+	# Process.
+	for target in "${targets[@]}"; do
+		((count++))
+
+		local status="[${count}/${total}] ${target}"
+
+		# Check that starts with a digit.
+		if [[ ! "${target}" =~ ^[0-9] ]]; then
+			echo "${status}"
+			continue
+		fi
+
+		# Prepare new name.
+		local digits=($(_parse_ints "${target}"))
+		local digit="${digits[0]}"
+		digit=$((10#${digit}))
+		local new_name=$(printf "%0${power}d" "${digit}")"${target#${digits[0]}}"
+
+		status="${status} -> ${new_name}"
+
+		# Skip if the same.
+		if [[ "${target}" = "${new_name}" ]]; then
+			echo "${status}"
+			continue
+		fi
+
+		# Check that file does not exist.
+		if [[ -e "${new_name}" ]]; then
+			echo -e "${color_bred}${status}: File exists!${color_default}"
+			return 1
+		fi
+
+		echo "${status}"
+
+		mv -- "${target}" "${new_name}"
+
 		if [[ ${?} != 0 ]]; then
 			echo -e "${color_bred}${status}: Failed.${color_default}"
 			((failed++))
diff --git a/.config/bash/module/util.sh b/.config/bash/module/util.sh
index 854413d..9a4c963 100644
--- a/.config/bash/module/util.sh
+++ b/.config/bash/module/util.sh
@@ -2,3 +2,8 @@
 function _core_count() {
 	cat /proc/cpuinfo | grep ^processor | wc -l
 }
+
+# Parse integers from mixed string.
+function _parse_ints() {
+	echo "${*}" | tr '\n' ' ' | sed -e 's/[^0-9]/ /g' -e 's/^ *//g' -e 's/ *$//g' | tr -s ' ' | sed 's/ /\n/g'
+}
diff --git a/.doc/bash.md b/.doc/bash.md
index 81b37c6..4eadb89 100644
--- a/.doc/bash.md
+++ b/.doc/bash.md
@@ -223,6 +223,7 @@ Command|Description
 `name_prefix <OLD> <NEW> [FILES]`|Change file name prefix. All matching files by default. 
 `name_postfix <OLD> <NEW> [FILES]`|Change file name postfix. All matching files by default. 
 `name_replace <OLD> <NEW> [FILES]`|Replace part of the name. All matching files by default. 
+`name_fix_numbering [FILES]`|Fix numbering for numbered files. I.e if there are 10 items and some of them start without zero, then append zero to it. 1..10 -> 01..10. 
 
 ## Ncdu.