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Simple systemd watchdog
cat <<EOF > /lib/systemd/system/[[[name]]].service
[Unit]
Description=[[[The Service to watch]]]
After=local-fs.target
[Service]
Type=simple
PIDFile=/var/run/[[[name]]].pid
ExecStart=/opt/[[[script.sh]]]
Restart=always
RestartSec=1
StartLimitInterval=0
StartLimitBurst=0
[Install]
WantedBy=default.target
EOF
cat <<EOF > /opt/[[[script.sh]]]
#!/bin/bash
/path/to/executable with args
EOF
service [[[name]]] stop
systemctl daemon-reload
systemctl enable [[[name]]].service
service [[[name]]] start
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