Remap the right command key to escape in macbooks on MacOS Sierra or higher

remap.sh

#!/bin/bash

# hidutil can remap keys from one to another;
# This will wipe out any previous remappings you have from hidutil.
hidutil property --set '{"UserKeyMapping":[{"HIDKeyboardModifierMappingSrc":0x7000000E7,"HIDKeyboardModifierMappingDst":0x700000029}]}'

# to remove this mapping, reset the user key mappings to be emtpy like this 
# hidutil property --set '{"UserKeyMapping":[]}'

# to find other keys to remap, check this reference https://usb.org/sites/default/files/hut1_22.pdf
# Keyboard Usage IDs start at 82.
# Replace 0x7000000E7 with whatever code you want as the source key (with the format 0x7000000XX; where XX is the code),
# and 0x700000029 with whatever code you want as the destination key.
# It seems like not all of the Mac keys follow the standard, but they may be in the "reserved section".

# You will have to run this whenever you start up the computer, but you can find ways to run it automatically at startup as well:
# see this repo for how to do that: https://github.com/dchakarov/restore-tilde