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每天一点Linux---关于/etc/issue文件和自定义登录提示语

发布时间:2014-09-05 15:38:02作者:知识屋


每天一点Linux---关于/etc/issue文件和自定义登录提示语
 
man手册对/etc/issue文件的描述是:
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      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.
 
      如上所述,修改/etc/issue文件可以达到修改登录提示语的作用。修改并保存该文件之后,重启,重启完成之后,按组合键Ctrl+Alt+F1进入终端模式,你就可以看到修改之后的提示语了。
 
      /etc/issue - escape code
 
      The issue-file (/etc/issue or the file set with the -f option) may contain certain escape codes 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. i486
 
      /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.
 
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