---

#!/bin/bash

source_file="source.txt"
dest_file="dest.txt"
keyword="adad"
count=0

# Очищаем выходной файл
> "$dest_file"

while IFS= read -r line; do
    if [[ "$line" == *"$keyword"* ]]; then
        echo "$line" >> "$dest_file"
        ((count++))
    fi
done < "$source_file"

echo "Перенесено строк: $count"