Permissão Binário Octal --- 000 0 --x 001 1 -w- 010 2 -wx 011 3 r-- 100 4 r-x 101 5 rw- 110 6 rwx 111 7
x -> execute w -> write r -> read
owner group general unix command when to use
rwx rwx rwx 421 401 401 sudo chmod 755 -> permissions to directories in production 420 400 400 sudo chmod 644 -> permissions to files in production