mac-os-x-terminal-commands
用行宽72 印出档案内容
fold -w 72 file.txt
搜寻Whatis 资料库中的字串
apropos <keywords>
看档案的扩充属性(extended attributes)
等同于
$ ls -leO@ file
-rw-r--r-- 1 user staff uchg 675 12 23 11:33 /Users/user/file
uchg就是扩充属性unchangeable
e -> Print the Access Control List (ACL) associated with the file, if present, in long (-l) output.
@ -> Display extended attribute keys and sizes in long (-l)
