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    Linux - Run Script after reboot

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    • DanpD
      Danp
      last edited by

      I would use a cron job for this.

      Example: http://www.cyberciti.biz/faq/linux-execute-cron-job-after-system-reboot/

      1 Reply Last reply Reply Quote 1
      • DustinB3403D
        DustinB3403
        last edited by

        Cron is scheduled tasks for Linux. Definitely the way to do this.

        1 Reply Last reply Reply Quote 0
        • hobbit666H
          hobbit666
          last edited by

          Doesn't seem to be working.

          systemctl status crond.service

          shows cron is running.

          crontab -e

          added the line

          @reboot /home/set-up.sh

          but when I reboot and log back in as root nothing 😞 guess i'm missing something

          thwrT DanpD travisdh1T 3 Replies Last reply Reply Quote 0
          • thwrT
            thwr @hobbit666
            last edited by

            @hobbit666 said in Linux - Run Script after reboot:

            Doesn't seem to be working.

            systemctl status crond.service

            shows cron is running.

            crontab -e

            added the line

            @reboot /home/set-up.sh

            but when I reboot and log back in as root nothing 😞 guess i'm missing something

            Not every cron implementation supports @reboot states.

            scottalanmillerS 1 Reply Last reply Reply Quote 0
            • DustinB3403D
              DustinB3403
              last edited by

              What distro are you using?

              thwrT 1 Reply Last reply Reply Quote 0
              • thwrT
                thwr @DustinB3403
                last edited by

                @DustinB3403 said in Linux - Run Script after reboot:

                What distro are you using?

                The question should be: which cron? vixie, anacron, fcron or systemd maybe?

                DustinB3403D DanpD 2 Replies Last reply Reply Quote 1
                • DustinB3403D
                  DustinB3403 @thwr
                  last edited by

                  @thwr said in Linux - Run Script after reboot:

                  @DustinB3403 said in Linux - Run Script after reboot:

                  What distro are you using?

                  The question should be: which cron? vixie, anacron, fcron or systemd maybe?

                  I suppose, the distro should have given us that info though.

                  1 Reply Last reply Reply Quote 1
                  • DanpD
                    Danp @thwr
                    last edited by

                    @thwr said in Linux - Run Script after reboot:

                    The question should be: which cron? vixie, anacron, fcron or systemd maybe?

                    @hobbit666 said in Linux - Run Script after reboot:

                    Doesn't seem to be working.

                    systemctl status crond.service

                    I would assume systemd based on the above.

                    1 Reply Last reply Reply Quote 1
                    • DanpD
                      Danp
                      last edited by

                      Reboot again and then post the output of journalctl -u cron -n 25.

                      1 Reply Last reply Reply Quote 0
                      • DanpD
                        Danp @hobbit666
                        last edited by

                        @hobbit666 said in Linux - Run Script after reboot:

                        added the line

                        @reboot /home/set-up.sh

                        but when I reboot and log back in as root nothing 😞 guess i'm missing something

                        Have you verified that the script can be run manually (have you set 'execute' permission)?

                        1 Reply Last reply Reply Quote 0
                        • travisdh1T
                          travisdh1 @hobbit666
                          last edited by

                          @hobbit666 said in Linux - Run Script after reboot:

                          Doesn't seem to be working.

                          systemctl status crond.service

                          shows cron is running.

                          crontab -e

                          added the line

                          @reboot /home/set-up.sh

                          but when I reboot and log back in as root nothing 😞 guess i'm missing something

                          I doubt /home/set-up.sh is the correct path, if it is, you need to create more users! Or did you mean /root/set-up.sh?

                          DanpD 1 Reply Last reply Reply Quote 0
                          • DanpD
                            Danp @travisdh1
                            last edited by

                            @travisdh1 Good eye. In the OP, he indicated /tmp, not /home.

                            J 1 Reply Last reply Reply Quote 2
                            • scottalanmillerS
                              scottalanmiller @thwr
                              last edited by

                              @thwr said in Linux - Run Script after reboot:

                              @hobbit666 said in Linux - Run Script after reboot:

                              Doesn't seem to be working.

                              systemctl status crond.service

                              shows cron is running.

                              crontab -e

                              added the line

                              @reboot /home/set-up.sh

                              but when I reboot and log back in as root nothing 😞 guess i'm missing something

                              Not every cron implementation supports @reboot states.

                              But all on available Linux do.

                              1 Reply Last reply Reply Quote 0
                              • hobbit666H
                                hobbit666
                                last edited by

                                Yes script runs and does what I want. I should of mentioned it has some prompts for user input.
                                It's a script to basically set-up networking on CentOS7 for basic IT Staff on new VM's so they don't have to edit the files direct.

                                So I idea is once CentOS is installed add the script to start on next boot, shut the VM down then use it to clone new ones. As it will ask for hostname and static IP.

                                scottalanmillerS thwrT 2 Replies Last reply Reply Quote 0
                                • scottalanmillerS
                                  scottalanmiller @hobbit666
                                  last edited by

                                  @hobbit666 said in Linux - Run Script after reboot:

                                  So I idea is once CentOS is installed add the script to start on next boot, shut the VM down then use it to clone new ones. As it will ask for hostname and static IP.

                                  Interesting idea. Does it force it, or just remind to do it?

                                  1 Reply Last reply Reply Quote 0
                                  • J
                                    Jstear @Danp
                                    last edited by

                                    @Danp said in Linux - Run Script after reboot:

                                    @travisdh1 Good eye. In the OP, he indicated /tmp, not /home.

                                    I'm with these two. Are you 100% you have the correct path?

                                    1 Reply Last reply Reply Quote 0
                                    • scottalanmillerS
                                      scottalanmiller
                                      last edited by

                                      I might implement a script like this. Care to share the script itself?

                                      hobbit666H 1 Reply Last reply Reply Quote 0
                                      • thwrT
                                        thwr @hobbit666
                                        last edited by

                                        @hobbit666 said in Linux - Run Script after reboot:

                                        So I idea is once CentOS is installed add the script to start on next boot, shut the VM down then use it to clone new ones. As it will ask for hostname and static IP.

                                        You could also use something like Ansible instead

                                        1 Reply Last reply Reply Quote 1
                                        • J
                                          Jstear
                                          last edited by

                                          This post is deleted!
                                          1 Reply Last reply Reply Quote 0
                                          • hobbit666H
                                            hobbit666 @scottalanmiller
                                            last edited by

                                            @scottalanmiller said in Linux - Run Script after reboot:

                                            I might implement a script like this. Care to share the script itself?

                                            Not back in till Wednesday but it's a simple one so far

                                            Asks for a hostname on a prompt and runs hostnamectl
                                            Then asks for ip to assign and runs a few sed commands to edit the cfg-eth0 file.

                                            So the main idea is to run the command/script when root logs in next.

                                            1 Reply Last reply Reply Quote 1
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