Linux系统管理 构建YUM仓库与安装vsftpd

前提
1，安装好centos
2查看虚拟机中的虚拟光驱是否已经安装了你所需要的ISO镜像文件
一，构建YUM仓库
[[email protected] ~]# umount /dev/sr0 //卸载原有光驱
[[email protected] ~]# mkdir /media/cdrom //在根目录media下创建cdrom
[[email protected] ~]# mount /dev/sr0 /media/cdrom/ //将光盘挂载到/media/cdrom下
[[email protected] ~]# cd /etc/yum.repos.d/ //进入/erc/yum.repos.d路径下
[[email protected] yum.repos.d]# mkdir a //在当前路径创建a文件夹
[[email protected] yum.repos.d]# mv C a //将当前文件夹所有C开头的文件移到a文件夹下
[[email protected] yum.repos.d]# cp a/M ./ //从a文件夹中拷贝中间有M的文件到当前路径
[[email protected] yum.repos.d]# vi CentOS-Media.repo 进入CentOS-Media.repo这个文档

  1 # CentOS-Media.repo
  2 #
  5 #  DVD ISO that we release.
  6 #
  8 #  yum --enablerepo=c6-media [command]
  9 #
 10 # or for ONLY the media repo, do this:
 11 #
 12 #  yum --disablerepo=\* --enablerepo=c6-media [command]
 13 
 14 [c6-media]
 15 name=CentOS-$releasever - Media
 16 baseurl=file:///media/CentOS/
 17         file:///media/cdrom/
 18         file:///media/cdrecorder/
 19 gpgcheck=1
 20 enabled=0 //将20行0修改为1 然后按esc推出修改模式再按：输入wq保存退出（x 或shift加两下z键也行）
 21 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-6
 [[email protected] yum.repos.d]# yum -y clean all 清楚本地缓存

Loaded plugins: fastestmirror, refresh-packagekit, security
Cleaning repos: c6-media
Cleaning up Everything
Cleaning up list of fastest mirrors
[[email protected] yum.repos.d]# yum makecache 创建yum仓库
Loaded plugins: fastestmirror, refresh-packagekit, security
Loading mirror speeds from cached hostfile

• c6-media:
  file:///media/CentOS/repodata/repomd.xml: [Errno 14] Could not open/read file:///media/CentOS/repodata/repomd.xml
  Trying other mirror.
  file:///media/cdrecorder/repodata/repomd.xml: [Errno 14] Could not open/read file:///media/cdrecorder/repodata/repomd.xml
  Trying other mirror.
  c6-media | 4.0 kB 00:00 …
  c6-media/group_gz | 220 kB 00:00 …
  c6-media/filelists_db | 5.8 MB 00:00 …
  c6-media/primary_db | 4.4 MB 00:00 …
  c6-media/other_db | 2.7 MB 00:00 …
  Metadata Cache Created
  二，安装vsftpd
  [[email protected] yum.repos.d]# rpm -q vsftpd //查看是否安装vsftpd
  package vsftpd is not installed //查询结果没有安装vsftpd
  [[email protected] yum.repos.d]# yum -y install vsftpd //用yum安装vsftpd
  Loaded plugins: fastestmirror, refresh-packagekit, security
  Loading mirror speeds from cached hostfile
• c6-media:
  Setting up Install Process
  Resolving Dependencies
  –> Running transaction check
  —> Package vsftpd.x86_64 0:2.2.2-11.el6_4.1 will be installed
  –> Finished Dependency Resolution

Dependencies Resolved

=================================================================
Package Arch Version Repository Size

Installing:
vsftpd x86_64 2.2.2-11.el6_4.1 c6-media 151 k

Transaction Summary

Install 1 Package(s)

Total download size: 151 k
Installed size: 331 k
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : vsftpd-2.2.2-11.el6_4.1.x86_64 1/1
Verifying : vsftpd-2.2.2-11.el6_4.1.x86_64 1/1

Installed:
vsftpd.x86_64 0:2.2.2-11.el6_4.1

Complete!
[[email protected] yum.repos.d]# rpm -q vsftpd //再次查询是否安装vsftpd
vsftpd-2.2.2-11.el6_4.1.x86_64 //查询安装了vsftpd

包含的命令：
mkdir 创建文件夹目录
cp 复制文件：
cp –f强行复制替换
cp –i提醒用户确认
cp -p保持源文件属性，权限，时间
cp –r递归复制
mv剪切文件或目录
vi进入文本文档
cd移动自身所在路径
install 安装
remove卸载