diff --git a/.local/bin/fixnames b/.local/bin/fixnames
new file mode 100644
index 00000000..d0aaf963
--- /dev/null
+++ b/.local/bin/fixnames
@@ -0,0 +1,23 @@
+#!/bin/dash
+
+[ -z "${1}" ] && {
+        printf "%s\n" "Specify a file path as an argument. e.g., fixnames <path>" >&2
+        exit "1"
+}
+
+[ "$(id -u)" = "0" ] && printf "%s\n" "This script should not be run as root" >&2 && exit "1"
+
+find "${1}" -depth \( -path '*/.*' -o -path '*/.*/*' -o -path '.' \) -prune -o \( -type f -o -type d \) -print0 | sort -zr | xargs -0 -P "0" -I {} dash -c '
+
+base="${1##*/}"
+path="${1%/*}"
+
+pattern="s/[^a-zA-Z0-9 ._-]//g; s/[ .-]/_/g; s/_+/_/g; s/^_+//; s/_+$//; s/[A-Z]/\L&/g"
+
+[ -f "${1}" ] && pattern="${pattern}; s/_([^_]+)$/.\\1/"
+
+new_name="$(printf "%s\n" "${base}" | sed -E "${pattern}")"
+
+[ "${base}" != "${new_name}" ] && [ -e "${path}/${new_name}" ] && new_name="${$}_${new_name}"
+[ "${base}" != "${new_name}" ] && mv "${1}" "${path}/${new_name}"
+' _ {}