어제까지 잘 썻는데 이렇게 나와버리네요 ls -al 이라고 쳐도 말입니다
 [r2t2@pcstory public_html]$ ll
ls: unrecognized option `--show-control-chars'
Try `ls --help' for more information.
[r2t2@pcstory public_html]$