1. 查看目录大小
[[email protected]]# du -kh -d 1 . | sort -h
2. 找出目录中占用磁盘最多的 10 个
[[email protected]]# du -cks * | sort -rn | head
23403552 total
9177692 work
5167648 fix-prometheus.tar.gz
2401788 deepin-15.11-amd64.iso
1048576 fix-prometheus.tar.gz.3
1048576 fix-prometheus.tar.gz.2
1048576 fix-prometheus.tar.gz.1
1048576 fix-prometheus.tar.gz.0
973344 fix-prometheus.tar.gz.4
743480 pycharm-2018.2.1
3. 关闭 Selinux
4. 关闭 Firewalld
[[email protected]]# systemctl stop firewalld
[[email protected]]# systemctl disable firewalld
5. 查看指定端口是否打开
[[email protected]]# ss -anlp | grep 80
6. 查找包含指定文本的文件
如果安装了 ACK 的话
[[email protected]]# ack "text"如果没有安装 ACK
[[email protected]]# grep -r "text" .
7. 快速查看本机 IP
[[email protected]]# hostname -I
192.168.1.47 192.168.122.1
8. Cannot open: https://centos7.iuscommunity.org/ius-release.rpm. Skipping.
问题是 ius 的地址变更了：
[[email protected]]# https://centos7.iuscommunity.org/ius-release.rpm 变更为 =>
[[email protected]]# https://repo.ius.io/ius-release-el7.rpm