1. Installation of rpm package:
1.安装一个包 # rpm -ivh 2.升级一个包 # rpm -Uvh 3.移走一个包 # rpm -e 4.安装参数 --force 即使覆盖属于其它包的文件也强迫安装 --nodeps 如果该RPM包的安装依赖其它包,即使其它包没装,也强迫安装。 5.查询一个包是否被安装 # rpm -q < rpm package name> 6.得到被安装的包的信息 # rpm -qi < rpm package name> 7.列出该包中有哪些文件 # rpm -ql < rpm package name> 8.列出服务器上的一个文件属于哪一个RPM包 #rpm -qf 9.可综合好几个参数一起用 # rpm -qil < rpm package name> 10.列出所有被安装的rpm package # rpm -qa 11.列出一个未被安装进系统的RPM包文件中包含有哪些文件? # rpm -qilp < rpm package name>
Recommended tutorial: centos usage tutorial
2. Uninstallation of rpm package :
rpm -qa | grep 包名 这个命令是为了把包名相关的包都列出来 rpm -e 文件名 这个命令就是你想卸载的软件,后面是包名称,最后的版本号是不用打的 例如: # rpm -qa | grep mysql mod_auth_mysql-2.6.1-2.2 php-mysql-5.3.9-3.15 mysql-devel-5.1.77-1.CenOS 5.2 mysql-5.0.77-1.CenOS 5.2 mysqlclient10-5.0.77-1.CentOS 5.2 libdbi-dbd-mysql-0.6.5-10.CentOS 5.2 # rpm -e mysqlclient
3. yum installation:
# yum install 包名
4. yum uninstallation:
# yum -y remove 包名
Related video tutorial recommendations: linux video tutorial
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Alternatives to CentOS include RockyLinux, AlmaLinux, OracleLinux, and SLES. 1) RockyLinux and AlmaLinux provide RHEL-compatible binary packages and long-term support. 2) OracleLinux provides enterprise-level support and Ksplice technology. 3) SLES provides long-term support and stability, but commercial licensing may increase costs.

Alternatives to CentOS include UbuntuServer, Debian, Fedora, RockyLinux, and AlmaLinux. 1) UbuntuServer is suitable for basic operations, such as updating software packages and configuring the network. 2) Debian is suitable for advanced usage, such as using LXC to manage containers. 3) RockyLinux can optimize performance by adjusting kernel parameters.

The CentOS shutdown command is shutdown, and the syntax is shutdown [Options] Time [Information]. Options include: -h Stop the system immediately; -P Turn off the power after shutdown; -r restart; -t Waiting time. Times can be specified as immediate (now), minutes ( minutes), or a specific time (hh:mm). Added information can be displayed in system messages.

The key differences between CentOS and Ubuntu are: origin (CentOS originates from Red Hat, for enterprises; Ubuntu originates from Debian, for individuals), package management (CentOS uses yum, focusing on stability; Ubuntu uses apt, for high update frequency), support cycle (CentOS provides 10 years of support, Ubuntu provides 5 years of LTS support), community support (CentOS focuses on stability, Ubuntu provides a wide range of tutorials and documents), uses (CentOS is biased towards servers, Ubuntu is suitable for servers and desktops), other differences include installation simplicity (CentOS is thin)

Steps to configure IP address in CentOS: View the current network configuration: ip addr Edit the network configuration file: sudo vi /etc/sysconfig/network-scripts/ifcfg-eth0 Change IP address: Edit IPADDR= Line changes the subnet mask and gateway (optional): Edit NETMASK= and GATEWAY= Lines Restart the network service: sudo systemctl restart network verification IP address: ip addr

CentOS installation steps: Download the ISO image and burn bootable media; boot and select the installation source; select the language and keyboard layout; configure the network; partition the hard disk; set the system clock; create the root user; select the software package; start the installation; restart and boot from the hard disk after the installation is completed.

The command to restart the SSH service is: systemctl restart sshd. Detailed steps: 1. Access the terminal and connect to the server; 2. Enter the command: systemctl restart sshd; 3. Verify the service status: systemctl status sshd.

Restarting the network in CentOS 8 requires the following steps: Stop the network service (NetworkManager) and reload the network module (r8169), start the network service (NetworkManager) and check the network status (by ping 8.8.8.8)


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