wc

Count lines, words, or bytes. More information: https://ss64.com/osx/wc.html.

• Count lines in file:
  wc -l {{path/to/file}}
• Count words in file:
  wc -w {{path/to/file}}
• Count characters (bytes) in file:
  wc -c {{path/to/file}}
• Count characters in file (taking multi-byte character sets into account):
  wc -m {{path/to/file}}
• Use stdin to count lines, words and characters (bytes) in that order:
  {{find .}} | wc