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Ubuntu system update-rc.d commands, ubuntuupdate-rc.d

Source: Internet
Author: User
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Ubuntu system update-rc.d commands, ubuntuupdate-rc.d

Update-rc.d commands in Ubuntu or Debian systems are scripts used to update system startup items. The links of these scripts are located in the/etc/rcN. d/directory, and the corresponding scripts are located in the/etc/init. d/directory. Before learning about update-rc.d commands, you need to know the main startup steps for Linux and the running level in Ubuntu.

1. Linux system main startup Step 2. Running level

Running level in Ubuntu

  • 0 (shut down the system)
  • 1 (in single-user mode, only root users are allowed to maintain the system .)
  • 2 to 5 (multi-user mode, where 3 is the character interface, and 5 is the graphical interface .)
  • 6 (restart the system)
3. Detailed explanation of update-rc.d commands 

 


                

                    
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