Linux command
motd 命令
安全
权限或系统影响较大，执行前请核对目标。
常用示例
Edit static MOTD
sudo nano /etc/motd
View MOTD
cat /etc/motd
Add dynamic MOTD script
sudo nano /etc/update-motd.d/[99-custom]
Make dynamic script executable
sudo chmod +x /etc/update-motd.d/[99-custom]
Regenerate dynamic MOTD
run-parts /etc/update-motd.d/
说明
motd (Message of the Day) is displayed to users upon login. It can be a static text file or dynamically generated from scripts. The contents of /etc/motd are displayed by login(1) after a successful login but just before executing the login shell. On systems with PAM, the pam_motd module handles display and can show files from multiple locations. Dynamic MOTD systems run scripts from /etc/update-motd.d/.
FAQ
What is the motd command used for?
motd (Message of the Day) is displayed to users upon login. It can be a static text file or dynamically generated from scripts. The contents of /etc/motd are displayed by login(1) after a successful login but just before executing the login shell. On systems with PAM, the pam_motd module handles display and can show files from multiple locations. Dynamic MOTD systems run scripts from /etc/update-motd.d/.
How do I run a basic motd example?
Run `sudo nano /etc/motd` in a terminal, then adjust file names, paths, flags, or remote targets for your system.
Where can I find more motd examples?
This page includes 5 examples for motd, plus related commands for nearby Linux tasks.