


Method: 1. Use "vim ~/.bashrc" to edit the ".bashrc" file in the user directory (~); 2. Add "alias ls="ls --color"" to the file; 3. Use the ":wq!" command to save the changes in the file; 4. Exit the terminal with the "exit" command and reconnect.
The operating environment of this article: centos 7 system, Dell G3 computer.
What to do if the ls command in centos does not display colors
Problem: ls -la does not display colors
Solution:
Create a file called .bash_profile in the user directory (~) (if it exists, there is no need to create it).
Edit the .bash_profile file
vim ~/.bashrc
Add in the .bashrc file
alias ls="ls --color"
Save and exit, restart terminal
Expand knowledge:
vim installation
1. Installation
注意:参考https://jingyan.baidu.com/article/046a7b3efd165bf9c27fa915.html 在终端输入vi,然后按Tab键,如果显示vim,说明已经安装了vim,如果没有显示执行如下命令: ubuntu系统: 普通用户下输入命令: sudo apt-get install vim-gtk centos系统: 普通用户下输入命令: yum -y install vim* 之后输入y,即可等待安装完成。
2 , Use
在终端输入vim,空白的编辑环境, 或者,执行命令 #vim 文件路径+文件名 即可打开指定的文件。 输入i,进入编辑状态 按Esc退出编辑状态 然后按住shift+:键,输入wq代表写入并退出,如果是wq!代表强制写入并退出,q表示不保存退出,q!表示不保存强制退出。执行退出后即可回到终端界面。 在vi中按u可以撤销一次操作 u 撤销上一步的操作 Ctrl+r 恢复上一步被撤销的操作 cd ..回到上一级目录 cd ~回到home目录 cd -回到某一目录
Recommended tutorial: "centos tutorial"
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CentOS is the first choice for server and enterprise environments for its superior security, stability and performance. 1) Security provides forced access control through SELinux to improve system security. 2) Stability is supported by the LTS version for up to 10 years to ensure the stability of the system. 3) Performance significantly improves system response speed and resource utilization by optimizing kernel and system configuration.

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