can-user-access-dir

#!/bin/sh

[ "`id -u`" != 0 ] && echo "Must be root to run this script" && exit -1
[ -z "$2" -o "$3" ] && echo "Usage: $0 user directory" && exit -1

USER="$1"
DIR="$2"

id "$USER" >& /dev/null || {
    echo "User '$USER' not exist";
    exit -1;
}

[ ! -d "$DIR" ] && echo "Directory '$DIR' not exist" && exit -1

sudo -u "$USER" test -d "${DIR}/."

if [ "$?" != 0 ]; then
    echo "FAILED: $USER -> $DIR"
    exit 1
else
    echo "OK: $USER -> $DIR"
    exit 0
fi