count how many lines you write in your project dir

code_line.sh

#!/bin/sh
 
if [ x"$1" = x ]
then
    code_dir="."
else
    code_dir="$1"
fi

if [ x"$2" = x ]
then
    exts="php js"
else
    exts="$2"
fi

for ext in $exts
do
    echo "$ext files"
    printf "count: "
    find $code_dir -type f -name "*.$ext" | wc -l
    printf "lines: "
    find $code_dir -type f -name "*.$ext" | xargs wc -l | tail -n 1
    echo
done