A little Linux every day --- prompts about the/etc/issue file and custom logon

A little Linux every day --- about the/etc/issue file and the User-Defined logon prompt man Manual's description of the/etc/issue file is: www.2cto.com The file/etc/issue is a text file which contains a message or system identification to be printed before the login prompt. it may contain various @ char and \ char sequences, if supported by getty. as mentioned above, modifying the/etc/issue file can be used to modify the logon prompt. After the file is modified and saved, restart the file. After the restart, press Ctrl + Alt + F1 to enter the terminal mode. Then you can see the modified prompt. /Etc/issue-escape code The issue-file (/etc/issue or the file set with the-f option) may contain certain ecodes to display the system name, date and time etc. all escape codes consist of a backslash (\) immediately followed by one of the letters explained below. \ B: Insert the baudrate of the current line. \ d: Insert the current date. \ s: Insert the system name, the name of the operating system. \ l: Insert the name of the current tty line. \ m: Insert the architecture identifier of the machine, eg. iden\ n: Insert the nodename of the machine, also known as the hostname. \ o: Insert the domainname of the machine. \ r: Insert the release number of the OS, eg. 1.1.9. \ t: Insert the current time. \ u: Insert the number of current users logged in. \ U: Insert the string "1 user" or "users" where is the number of current users logged in. \ v: Insert the version of the OS, eg. the build-date etc.