look
Display any line in the file that begins with the specified string
Supplementary instructions
look command is used to display any line starting with the specified string in the file.
grammar
look(option)(parameter)Options
-a: Use another dictionary file web2, which is also located in the /usr/dict directory;
-d: Only compare English letters and numbers, and ignore the rest;
-f: Ignore character case differences;
-t<suffix string>: Set the suffix string.
