[root@iamzken ~] : > filename [root@iamzken ~] > filename [root@iamzken ~] echo “” > filename [root@iamzken ~] echo > filename [root@iamzken ~] cat /dev/null > filename [root@iamzken ~] sed -i '1,$d' filename 相关文章： 2021-07-06 2021-12-18 2021-11-20 2022-12-23 2022-01-19 2021-07-05 2022-12-23 2021-10-29