author : headsen chen
date: 2018-05-11  09:50:23

[root@localhost ~]# which vim

/usr/bin/vim

[root@localhost ~]# rpm -qf /usr/bin/vim

vim-enhanced-7.4.-.el7.x86_64

[root@localhost ~]#rm -f /usr/bin/vim    #  -------------------> 删除vim命令，模拟命令错误

 ls -l /usr/bin/vim

#开始重新下载安装vim命令：

 wget ftp://ftp.vim.org/pub/vim/unix/vim-7.4.tar.bz2

 tar fx vim-7.4.tar.bz2

 cd vim74/

 yum -y install ncurses-devel ncurses   # -----------------> 要先安装这个库，否则下面的编译会报错!!!!!!!!!!!!!!

 ./configure --prefix=/usr/local/vim74

 make

 make install

 vim

 /usr/local/vim74/bin/vim /etc/profile   # ------------------> 末行添加: PATH=$PATH:/usr/local/vim74/bin/vim;export

 
# 用别名也可以：
# alias vim='/usr/local/vim74/bin/vim'

 source /etc/profile

 echo $PATH

 vim

 vim /etc/profile