if [ ![-e recommendations_new.txt ] ]
then
touch recommendations_new.txt
fi
grep -E "^([0-9]{1,11})\,([0-9]{1,11})\,(.*)" recommendations.txt | while read line
do
echo $line >> recommendations_new.txt
done
版权声明：本文为qq_34597894原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。