1. 터미널에서

mkdir -p /Users/Shared/bin
echo '''#!/bin/sh\nhidutil property --set '\'{\"UserKeyMapping\":\[\{\"HIDKeyboardModifierMappingSrc\":0x7000000e7,\"HIDKeyboardModifierMappingDst\":0x70000006d\}\]\}\''''' > /Users/Shared/bin/userkeymapping
chmod 755 /Users/Shared/bin/userkeymapping
sudo cat<<: >/Users/Shared/bin/userkeymapping.plist
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>userkeymapping</string>
    <key>ProgramArguments</key>
    <array>
        <string>/Users/Shared/bin/userkeymapping</string>
    </array>
    <key>RunAtLoad</key>
    <true/>
</dict>
</plist>
:
sudo mv /Users/Shared/bin/userkeymapping.plist /Library/LaunchAgents/userkeymapping.plist
sudo chown root /Library/LaunchAgents/userkeymapping.plist
sudo launchctl load /Library/LaunchAgents/userkeymapping.plist

입력 후 패스워드

설정 키보드 입력소스 선택에서 F18로

2. 키 매핑 수정했던 걸 원래대로 돌리고 싶다면

hidutil property --set '{"UserKeyMapping":[]}'

이 명령어를 실행하면 된다.