链接器同样认可普通符号的定义而忽略弱符号。
The link editor honors the common definition and ignores the weak ones.
接下来的%和#符号代表提示，%表示为普通用户，#表示为root用户。
The symbols % and # in the following stand for the prompt (yours may be different), with % indicating an ordinary user and # indicating root.
对于符号链接，将显示其目标文件，并且还将显示普通文件的大小。
Symbolic links have their target printed, and you print out the size of regular files.
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