20160928文件类型说明type

-type c               File is of type c:               b      block (buffered) special               c      character (unbuffered) special               d      directory               p      named pipe (FIFO)               f      regular file               l      symbolic link; this is never true if the -L option or the                      -follow option is in effect, unless the symbolic link  is                      broken.  If you want to search for symbolic links when -L                      is in effect, use -xtype.               s      socket               D      door (Solaris)