diegodorado

# Building the firmware
# https://nodemcu.readthedocs.io/en/master/en/build/
#
# I used the Docker Image method
# https://hub.docker.com/r/marcelstoer/nodemcu-build/

# 1) download the firmware
git clone --recurse-submodules https://github.com/nodemcu/nodemcu-firmware.git

# 2) Configure modules and features

diegodorado

rename -n 's/\.JPG$/\.jpg/' *
# -n for testing... doesnt actually rename

rename -v 's/\.JPG$/\.jpg/' *
# -v, to be verbose, so you see what and how it is renamed

#one liner rename ordered files
ls | cat -n | while read n f; do mv "$f" `printf "%02d.wav" $n`; done