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Run command as root at Linux startup

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poiuytrez -  
Hello, I am on Fedora Core 4, I would like to run a command or a script at system startup on Linux that requires root permissions. How should I do it?
Thank you for your help.

7 answers

  1. lami20j Moderator
    Hi, It seems the file /etc/init.d/rc.local is present on FC4 you just have to type as root 
    echo "yum -y upgrade" >> /etc/init.d/rc.local
    on reboot the command will be executed However I agree with crabs. This is not a good idea to run an upgrade this way. Besides, doing an upgrade just to be able to brag that I have the latest version of the software is childish. -- lami20j
    1. crabs
      Hi,
      I don’t have FC4, but I have some old RH memories.
      You need root rights.
      Everything happens in the /etc/init.d directory and the rc(x).d (x) corresponding to the machine’s run level
      watch how the folders are built with 'ls -il'.
      For info everything starts from /etc/inittab...
      In the rc.d:
      a script that starts with K -> stop the service: run the script with the stop parameter
      a script that starts with S -> start the service: run the script with the start parameter
      Then 2 digits that allow sorting in ascending order and thus obtain the order
      of starting the stop scripts for the service, then those of starting

      Cheers, crabs
      --
      ..., I think Slackware sounds better than 'Microsoft,'
      -- Patrick Volkerding - founder and maintainer of Slackware
      1. poiuytrez Author
        Thank you but I don’t want to launch a service at startup; I actually just want to run the command, as root:
        #yum -y upgrade

        Thank you!
        1. crabs
          Hello,
          In my statement, service was used in the broad sense.
          It can be a script that launches a program...
          Personally, at each startup, I run a command that synchronizes my clock with an NTP server, it's just a command put in a script.

          Take the trouble to at least look in these startup areas.

          Otherwise isn't it a bit dangerous to launch an OS update without the possibility to take control? Do some updates not require restarting certain services or even a machine reboot?
          --
          ..., I think Slackware sounds better than 'Microsoft,'
          -- Patrick Volkerding - founder and maintainer of Slackware
          2. poiuytrez Author
            Okay well I’m going to use this technique... In fact I knew it but I thought there was a cleaner method.

            Thanks @+
            2. rdan
              Hello, if a single script is present in all rc*.d folders, it means it is started during the loading of modes 1 to 5 normally, so it would be launched 5 times if mode 5 is loaded, yet that's probably not the case, where is the error?