1.使用rpm安装zsh(忽略依赖关系安装)
RPM是红帽包管理(Redhat Package Manager)的缩写。
由Red Hat公司提出的一种软件包管理标准。
是Linux各发行版中应用最广泛的软件包格式之一（还有debian的发行版deb安装包）。
RPM功能通过rpm命令使用不同参数来实现。
查询是否已安装
```powershell [root@ls_nfqZ8Onc ~]# rpm -q zsh zsh-5.5.1-6.el8_1.2.x86_64
## 卸载zsh ```powershell [root@ls_nfqZ8Onc ~]# rpm -e zsh [root@ls_nfqZ8Onc ~]# rpm -q zsh package zsh is not installed
查询所有已安装软件
rpm -qa
查询date命令所在软件包
[root@ls_nfqZ8Onc ~]# whereis date date: /usr/bin/date /usr/share/man/man1/date.1.gz /usr/share/man/man1p/date.1p.gz
查询未安装的zsh的文件信息
[root@ls_nfqZ8Onc ~]# rpm -qpl zsh-5.8.1-2.mga9.x86_64.rpm error: open of zsh-5.8.1-2.mga9.x86_64.rpm failed: No such file or directory
2.yum本地网络源配置
yum本地源配置
[root@WHL ~]# mount /dev/sr0 /mnt/ mount: /mnt: /dev/sr0 already mounted on /run/media/lr/RHEL-8-5-0-BaseOS-x86_64. [root@WHL ~]# cd /etc/yum.repos.d/ [root@WHL yum.repos.d]# ls [root@WHL yum.repos.d]# vim redhat.repo [root@WHL yum.repos.d]# yum clean all Updating Subscription Management repositories. Unable to read consumer identity This system is not registered with an entitlement server. You can use subscription-manager to register. 0 files removed [root@WHL yum.repos.d]# [root@WHL yum.repos.d]# yum makecache Updating Subscription Management repositories. Unable to read consumer identity This system is not registered with an entitlement server. You can use subscription-manager to register. BaseOS 104 MB/s | 2.4 MB 00:00 AppStream 116 MB/s | 7.2 MB 00:00 Metadata cache created. [root@WHL yum.repos.d]# yum install httpd Updating Subscription Management repositories. Unable to read consumer identity
yum网络源配置
[root@WHL yum.repos.d]# ll total 8 -rw-r--r--. 1 root root 2519 Jul 28 19:32 Centos-vault-8.5.2111.repo -rw-r--r--. 1 root root 128 Jul 28 19:27 redhat.repo [root@WHL yum.repos.d]# yum clean all [root@WHL yum.repos.d]# yum makecache
安装httpd软件
[root@WHL yum.repos.d]# yum install httpd -y Updating Subscription Management repositories. Unable to read consumer identity This system is not registered with an entitlement server. You can use subscription-manager to register. Last metadata expiration check: 0:00:06 ago on Thu 28 Jul 2022 07:40:08 PM CST. Package httpd-2.4.37-41.module+el8.5.0+11772+c8e0c271.x86_64 is already installed. Dependencies resolved. Nothing to do. Complete!
查看vim命令属于哪个软件包
[root@WHL yum.repos.d]# whereis vim vim: /usr/bin/vim /usr/share/vim /usr/share/man/man1/vim.1.g
yum卸载httpd
[root@WHL yum.repos.d]# yum remove httpd
清理缓存
[root@WHL yum.repos.d]# yum clean all
重新创建缓存
[root@WHL yum.repos.d]# yum makecache
安装postgresql模块中的版本13
[root@WHL yum.repos.d]# yum install @postgresql:13
3.源码安装: httpd
4.查看root用户带有终端的进程
[root@WHL yum.repos.d]# ps -l F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY TIME CMD 0 S 0 3484 3477 0 80 0 - 6987 - pts/0 00:00:00 bash 0 R 0 35628 3484 0 80 0 - 11370 - pts/0 00:00:00 ps [root@WHL yum.repos.d]#
显示没有终端的进程
[root@WHL yum.repos.d]# ps -x
显示所有进程
[root@WHL yum.repos.d]# ps -aux
查看1分钟内占用CPU时间前10的进程(使用top命令)
top - 19:45:16 up 25 min, 2 users, load average: 0.05, 0.11, 0.14 Tasks: 299 total, 3 running, 296 sleeping, 0 stopped, 0 zombie %Cpu(s): 0.0 us, 6.2 sy, 0.0 ni, 93.8 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st MiB Mem : 1790.2 total, 165.6 free, 1049.8 used, 574.8 buff/cache MiB Swap: 1908.0 total, 1796.2 free, 111.8 used. 579.0 avail Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1 root 20 0 176016 13652 8812 S 0.0 0.7 0:03.12 systemd 2 root 20 0 0 0 0 S 0.0 0.0 0:00.01 kthreadd 3 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 rcu_gp sort: invalid number at field start: invalid count at start of ‘+’
