0720RHCSA

使用rpm安装zsh(忽略依赖关系安装)

[[email protected] ~]# rpm --nodeps -hiv zsh-5.5.1-9.el8.x86_64.rpm
warning: zsh-5.5.1-9.el8.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID 8483c65d: NOKEY
Verifying...                          ################################# [100%]
Preparing...                          ################################# [100%]
Updating / installing...
   1:zsh-5.5.1-9.el8                  ################################# [100%]

• 查询是否已安装

  [[email protected] ~]# rpm -qi zsh-5.5.1-9.el8.x86_64.rpm
  zsh-5.5.1-9.el8.x86_64
  

  卸载zsh

  [[email protected] ~]# rpm -e zsh-5.5.1-9.el8.x86_64
  

  查询所有已安装软件

• [[email protected] ~]# rpm -qa
  

  查询date命令所在软件包

  [[email protected] ~]# whereis date
  date: /usr/bin/date /usr/share/man/man1/date.1.gz /usr/share/man/man1p/date.1p.gz
  [[email protected] ~]# cd /usr/bin/
  [[email protected] bin]# rpm -qf date
  coreutils-8.30-12.el8.x86_64
  

  查询未安装的zsh的文件信息

• [[email protected] bin]# rpm -ql zsh-5.5.1-9.el8.x86_64
  package zsh-5.5.1-9.el8.x86_64 is not installed
  

  yum本地源配置

• [[email protected] mnt]# mount /dev/sr0 /mnt/ 
  mount: /mnt: /dev/sr0 already mounted on /mnt.
  [[email protected] mnt]# cd  /etc/yum.repos.d/
  [[email protected] yum.repos.d]# vim redhat.repo 
  """
  [BaseOS]
  name=BaseOS
  baseurl=file:///mnt/BaseOS
  gpgcheck=0
  
  [AppStream]
  name=AppStream
  baseurl=file:///mnt/AppStream
  gpgcheck=0
  """配置
  
  [[email protected] yum.repos.d]# yum clean all
  [[email protected] yum.repos.d]# yum makecache
  

  yum网络源配置

• sftp> put C:\Users\jameth\Desktop\Centos-vault-8.5.2111.repo /etc/yum.repos.d
  Uploading C:/Users/jameth/Desktop/Centos-vault-8.5.2111.repo to /etc/yum.repos.d/Centos-vault-8.5.2111.repo
  C:/Users/jameth/Desktop/Centos-vault-8.5.2111.repo                                    100% 2519     1.2MB/s   00:00
  
  
  [[email protected] yum.repos.d]# ls -l
  total 8
  -rw-r--r--. 1 root root 2519 Jul 20 18:57 Centos-vault-8.5.2111.repo
  -rw-r--r--. 1 root root  487 Jul 20 18:35 redhat.repo
  [[email protected] yum.repos.d]# yum clean all
  [[email protected] yum.repos.d]# yum makecache
  

  安装httpd软件

• [[email protected] yum.repos.d]# yum install httpd
  

  查看vim命令属于哪个软件包

  [[email protected] yum.repos.d]# whereis vim
  vim: /usr/bin/vim /usr/share/vim /usr/share/man/man1/vim.1.gz
  [[email protected] yum.repos.d]# rpm -qf /usr/bin/vim
  vim-enhanced-8.0.1763-16.el8.x86_64
  

  yum卸载httpd

  [[email protected] yum.repos.d]# yum remove httpd
  

  清理缓存

  [[email protected] yum.repos.d]# yum clean all
  

  重新创建缓存

• [[email protected] yum.repos.d]# yum makecache
  

  安装postgresql模块中的版本13

• [[email protected] yum.repos.d]# yum install @postgresql:13
  

  源码安装: httpd

• [[email protected] ~]# tar xf httpd-2.4.12.tar.gz 
  [[email protected] ~]# cd httpd-2.4.12/
  [[email protected] ~]# ./configure --prefix=/usr/local/httpd24 --enable-so --enable-rewrite --enable-ssl
  [[email protected] ~]# make && make install
  

  查看root用户带有终端的进程

• [[email protected] ~]#  ps -l
  

  显示没有终端的进程

  [[email protected] ~]#  ps -x
  

  显示所有进程

• [[email protected] ~]#  ps aux
  

  查看1分钟内占用CPU时间前10的进程(使用top命令

•  top |head -;top |grep -v PID|sort -rn -k +|head