What is use of ‘wc’ command in UNIX system?

‘wc’ command is use to count lines, word and characters depending on the option used. ‘wc’ displays a four-columnar output.
Syntax—
      <prompt> wc <option> <file name>
Ex--
      <prompt>wc data
    3 20 103 data     (Number of lines, words, character)
     <prompt> wc -l data
     3 data         (Number of lines)
     <prompt> wc -w data
     20 data     (Number of words)
     <prompt>wc - c data
     103 data     (Number of characters)