Aktios 5.1 (Bash)

#!/bin/bash
IFS=$'\n'
for FILE in $(find $2 -type f)
do
    if [ -r $FILE ]
    then
        AMOUNT=$(grep $1 $FILE | wc -l)
        if [ ! $AMOUNT -eq 0 ]
        then
            echo "$FILE $(stat -c%s "$FILE")"
        fi
    else
        echo "no access"
    fi
done