wc [OPTION]... [FILE]...

• Count files and folders:
  

  $ ls | wc -w
  14
  

• Count lines in a file:
  

  $ wc -l test.txt
  26 test.txt
  

• Count words in a file:
  

  $ wc -w test.txt
  42 test.txt
  

• Count characters in a file:
  

  $ wc -m test.txt
  156 test.txt
  

• Count bytes in a file:
  

  $ wc -c test.txt
  156 test.txt
  

• Show all counts (lines, words, characters):
  

  $ wc test.txt
  26 42 156 test.txt
  

• Count multiple files:
  

  $ wc -l file1.txt file2.txt
  15 file1.txt
  20 file2.txt
  35 total
  

• Count from standard input:
  

  $ echo "hello world" | wc -w
  2
  

-l, --lines
    print the newline counts

-w, --words
    print the word counts

-m, --chars
    print the character counts

-c, --bytes
    print the byte counts

-L, --max-line-length
    print the maximum display width

--files0-from=F
    read input from the files specified by NUL-terminated names in file F

--help
    display this help and exit

--version
    output version information and exit