#!/bin/bash
filename="$1"
for homedir in /home/*; do
if cmp "/etc/skel/$filename" "$homedir/$filename" &>/dev/null; then
owner_group=$(find $homedir -maxdepth 0 -printf '%u:%g')
echo "$filename:$homedir:${owner_group%:*}:${owner_group#*:}"
fi
done