Simple Line Counter with Bash

A simple bash based line counter could look like this:

#!/bin/bash

function count_lines() {
  local LINE_COUNT=0
  local FILE_COUNT=0
  for file in $(find -name $1); do
    local lines=$(wc -l $file | sed 's/\([0-9]\+\).*/\1/')
    LINE_COUNT=$(expr $LINE_COUNT + $lines)
    FILE_COUNT=$(expr $FILE_COUNT + 1)
  done
  echo "Counted [$LINE_COUNT] in [$FILE_COUNT] [$1] files"
}

count_lines $@