chown ش 丮 ڸ ϰ
chmod 丮 ۹̼ Ͽ ϼ .
chmod : //ٸ (б//) chown : ڿ
chown [ɼ(cfvR)] : ϸ
ex) chown -R user1:group1 aaa -> aaa ϱ ڸ user1 / group1
chown user1 aaa.txt -> aaa.txt ڸ user1
chown :group1 aaa.txt -> aaa.text group1