A, readlink: view the contents of symbolic link files
Syntax
readlink [option] ... file ...
Description
Value Print symbolic link or canonical file name
-f, - canonicalize
to standardization by following every symlink in every component of
recursion given name; all components except the last component must
exist
Two, find -exec command parameters
File find find + -exec + command + command + {} \;
{} Represents the find to find files
\ Escape
; Terminator
Three, file command
file: file type display
Example:
This file is a link file will be prompted to file
