1.清空
cat /dev/null > alert_sid.log
2.截断
tail -n 1000 alert_sid.log > alert_sid.log
3.使用echo
echo "" > alert_sid.log
1.清空
cat /dev/null > alert_sid.log
2.截断
tail -n 1000 alert_sid.log > alert_sid.log
3.使用echo
echo "" > alert_sid.log