Hi, On Tue, Dec 22, 2020, at 06:51, Carlos Lopez wrote: > I am trying to configure a script as a systemd service to run first when a shutdown or reboot is called. This script execute some scp commands to copy some files to other machines. My actual defined systemd’s file is: > > [Unit] > Description=Remote copy some files before reboot/shutdown > Before=poweroff.target halt.target shutdown.target reboot.target > DefaultDependencies=no > > [Service] > Type=simple > ExecStart=/bin/true > ExecStop=/usr/local/bin/remote_copy > RemainAfterExit=yes > > [Install] > WantedBy=multi-user.target > > But it doesn’t work. “remote_copy” is working when it is executed from root shell. I am using CentOS-8 fully patched release. > > Any idea what am I doing wrong? I don't have a CentOS 8 machine to test on but on a CentOS 7.9, this works for me: /etc/systemd/system/shutdown-test.service ------------------------------------------------------ [Unit] Description=Remote copy some files before reboot/shutdown [Service] Type=oneshot ExecStart=/bin/true ExecStop=/usr/local/bin/remote_copy RemainAfterExit=true [Install] WantedBy=multi-user.target ------------------------------------------------------ the mode and contents of remote_copy: -rwxr-xr-x 1 root root 44 Dec 22 08:23 /usr/local/bin/remote_copy ------------------------------------------------------ #!/bin/bash date >> /tmp/remote_copy_result ------------------------------------------------------ After enabling the service and rebooting, I get a file in /tmp/remote_copy_result that contains the date. My success is attributable not to me but to this post: https://unix.stackexchange.com/questions/39226/how-to-run-a-script-with-systemd-right-before-shutdown Your unit file seems similar but when I used it, it didn't work on my CentOS 7.9 system either.