For use with WSL. Generates all reserved Windows file names (files and folders), zips them, then deletes the intermediary files.

generator.sh

#!/bin/bash

mkdir illegal_files # no -p flag, we don't want to overwrite/delete actual data
cd illegal_files

mkdir -p folders
mkdir -p files
mkdir -p files_with_extension

ILLEGAL_NAMES="CON PRN AUX NUL \
	COM1 COM2 COM3 COM4 COM5 COM6 COM7 COM8 COM9 \
	LPT1 LPT2 LPT3 LPT4 LPT5 LPT6 LPT7 LPT8 LPT9 "

for NAME in $ILLEGAL_NAMES
do
	mkdir "./folders/$NAME"
	echo "I am inside the $NAME folder now." > "./folders/$NAME/file.txt"
	echo "I have just created $NAME." > "./files/$NAME"
	echo "I have just created $NAME.txt." > "./files_with_extension/$NAME.txt"
done

zip -m illegal_files.zip -r *
mv illegal_files.zip ..
cd ..
rm -rf illegal_files

Nice