vi代码高亮

centos中自带vi编辑器，但是vi毕竟只是vim的阉割版，基本的代码高亮功能也没有，所以考虑安装一个完整版的vim

[root@iZ2zebjvditkx9z5rp1bmsZ zhangyd]# yum search vim
Loaded plugins: fastestmirror
Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast
Determining fastest mirrors
 * base: mirrors.aliyuncs.com
 * epel: mirrors.aliyuncs.com
 * extras: mirrors.aliyuncs.com
 * updates: mirrors.aliyuncs.com
========================================================================== N/S matched: vim ===========================================================================
beakerlib-vim-syntax.noarch : Files for syntax highlighting BeakerLib tests in VIM editor
fluxbox-vim-syntax.noarch : Fluxbox syntax scripts for vim
golang-vim.noarch : Vim plugins for Go
protobuf-vim.x86_64 : Vim syntax highlighting for Google Protocol Buffers descriptions
vim-X11.x86_64 : The VIM version of the vi editor for the X Window System
vim-clustershell.noarch : VIM files for ClusterShell
vim-common.x86_64 : The common files needed by any version of the VIM editor
vim-enhanced.x86_64 : A version of the VIM editor which includes recent enhancements
vim-filesystem.x86_64 : VIM filesystem layout
vim-go.x86_64 : Go development plugin for Vim
vim-gtk-syntax.noarch : Vim syntax highlighting for GLib, Gtk+, Gstreamer, and more
vim-minimal.x86_64 : A minimal version of the VIM editor
vim-vimoutliner.noarch : Script for building an outline editor on top of Vim

  Name and summary matches only, use "search all" for everything.

选择vim-enhanced版本，这个版本是包含最新增强功能的VIM编辑器版本

[root@iZ2zebjvditkx9z5rp1bmsZ zhangyd]# yum install vim-enhanced
Loaded plugins: fastestmirror
Repodata is over 2 weeks old. Install yum-cron? Or run: yum makecache fast
base                                                                                                                                            | 3.6 kB  00:00:00
epel                                                                                                                                            | 4.3 kB  00:00:00
extras                                                                                                                                          | 3.4 kB  00:00:00
mysql-connectors-community                                                                                                                      | 2.5 kB  00:00:00
mysql-tools-community                                                                                                                           | 2.5 kB  00:00:00
mysql56-community                                                                                                                               | 2.5 kB  00:00:00
nginx                                                                                                                                           | 2.9 kB  00:00:00
updates                                                                                                                                         | 3.4 kB  00:00:00
(1/7): extras/7/x86_64/primary_db                                                                                                               | 122 kB  00:00:00
(2/7): mysql-tools-community/x86_64/primary_db                                                                                                  |  32 kB  00:00:00
(3/7): epel/x86_64/updateinfo                                                                                                                   | 745 kB  00:00:00
(4/7): mysql56-community/x86_64/primary_db                                                                                                      | 159 kB  00:00:00
(5/7): nginx/x86_64/primary_db                                                                                                                  |  21 kB  00:00:02
(6/7): updates/7/x86_64/primary_db                                                                                                              | 2.9 MB  00:00:02
(7/7): epel/x86_64/primary_db                                                                                                                   | 4.5 MB  00:00:04
Loading mirror speeds from cached hostfile
 * base: mirrors.aliyuncs.com
 * epel: mirrors.aliyuncs.com
 * extras: mirrors.aliyuncs.com
 * updates: mirrors.aliyuncs.com
Resolving Dependencies
--> Running transaction check
---> Package vim-enhanced.x86_64 2:7.4.160-1.el7_3.1 will be installed
--> Processing Dependency: vim-common = 2:7.4.160-1.el7_3.1 for package: 2:vim-enhanced-7.4.160-1.el7_3.1.x86_64
--> Running transaction check
---> Package vim-common.x86_64 2:7.4.160-1.el7_3.1 will be installed
--> Processing Dependency: vim-filesystem for package: 2:vim-common-7.4.160-1.el7_3.1.x86_64
--> Running transaction check
---> Package vim-filesystem.x86_64 2:7.4.160-1.el7_3.1 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

=======================================================================================================================================================================
 Package                                   Arch                              Version                                          Repository                          Size
=======================================================================================================================================================================
Installing:
 vim-enhanced                              x86_64                            2:7.4.160-1.el7_3.1                              updates                            1.0 M
Installing for dependencies:
 vim-common                                x86_64                            2:7.4.160-1.el7_3.1                              updates                            5.9 M
 vim-filesystem                            x86_64                            2:7.4.160-1.el7_3.1                              updates                            9.7 k

Transaction Summary
=======================================================================================================================================================================
Install  1 Package (+2 Dependent packages)

Total download size: 7.0 M
Installed size: 23 M
Is this ok [y/d/N]: y
Downloading packages:
(1/3): vim-filesystem-7.4.160-1.el7_3.1.x86_64.rpm                                                                                              | 9.7 kB  00:00:00
(2/3): vim-enhanced-7.4.160-1.el7_3.1.x86_64.rpm                                                                                                | 1.0 MB  00:00:01
(3/3): vim-common-7.4.160-1.el7_3.1.x86_64.rpm                                                                                                  | 5.9 MB  00:00:05
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total                                                                                                                                  1.2 MB/s | 7.0 MB  00:00:05
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : 2:vim-filesystem-7.4.160-1.el7_3.1.x86_64                                                                                                           1/3
  Installing : 2:vim-common-7.4.160-1.el7_3.1.x86_64                                                                                                               2/3
  Installing : 2:vim-enhanced-7.4.160-1.el7_3.1.x86_64                                                                                                             3/3
  Verifying  : 2:vim-enhanced-7.4.160-1.el7_3.1.x86_64                                                                                                             1/3
  Verifying  : 2:vim-common-7.4.160-1.el7_3.1.x86_64                                                                                                               2/3
  Verifying  : 2:vim-filesystem-7.4.160-1.el7_3.1.x86_64                                                                                                           3/3

Installed:
  vim-enhanced.x86_64 2:7.4.160-1.el7_3.1

Dependency Installed:
  vim-common.x86_64 2:7.4.160-1.el7_3.1                                            vim-filesystem.x86_64 2:7.4.160-1.el7_3.1

Complete!

那么，怎么让vi也能代码高亮呢？

vim /etc/bashrc

在最底部增加alias vi=vim

OK！完成，看看效果