쓰기 write <br />
소유 sudo chown -R pi /var/www/html<br />
지우기 delete<br />
권한 sudo chmod 755 /etc/init.d<br />
directory찾기 "which node"  or  "readlink -f  main.js"<br />
postman kskang2 kskang2@gmail.com kang5945 teamname kskang2 URL kskang22.postman.co