Count lines of files in the directory.

gistfile1.sh

function countlines() {
    local basedir=$1
    local currentlines='0'
    local thislines
    shift 1
    while [ $1 ] ;do
        thislines=`find "$basedir" -type f -name "*.$1" -print0 | xargs -0 cat | wc -l`
        currentlines=$(($thislines + $currentlines))
        shift 1
    done
    echo $currentlines
}