systemd_imwheel_log.txt

$ sudo systemctl daemon-reload
$ sudo systemctl status imwheel.service
● imwheel.service - imwheel
   Loaded: loaded (/etc/systemd/system/imwheel.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since 火 2017-03-07 19:50:05 JST; 24h ago
 Main PID: 1045 (code=exited, status=0/SUCCESS)

 3月 07 19:50:05 yumetodo-desktop systemd[1]: Started imwheel.
 3月 07 19:50:05 yumetodo-desktop imwheel[1045]: INFO: imwheel started (pid=1112)
 3月 07 19:50:05 yumetodo-desktop imwheel[1045]: Could not open display, check shell DISPLAY variable, and export or setenv it!
 3月 07 19:50:05 yumetodo-desktop systemd[1]: imwheel.service: Control process exited, code=exited status=1
 3月 07 19:50:05 yumetodo-desktop systemd[1]: imwheel.service: Unit entered failed state.
 3月 07 19:50:05 yumetodo-desktop systemd[1]: imwheel.service: Failed with result 'exit-code'.
$ sudo systemctl disable imwheel.service
Removed symlink /etc/systemd/system/multi-user.target.wants/imwheel.service.
$ sudo systemctl status imwheel.service
● imwheel.service - imwheel
   Loaded: loaded (/etc/systemd/system/imwheel.service; disabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since 火 2017-03-07 19:50:05 JST; 24h ago
 Main PID: 1045 (code=exited, status=0/SUCCESS)

 3月 07 19:50:05 yumetodo-desktop systemd[1]: Started imwheel.
 3月 07 19:50:05 yumetodo-desktop imwheel[1045]: INFO: imwheel started (pid=1112)
 3月 07 19:50:05 yumetodo-desktop imwheel[1045]: Could not open display, check shell DISPLAY variable, and export or setenv it!
 3月 07 19:50:05 yumetodo-desktop systemd[1]: imwheel.service: Control process exited, code=exited status=1
 3月 07 19:50:05 yumetodo-desktop systemd[1]: imwheel.service: Unit entered failed state.
 3月 07 19:50:05 yumetodo-desktop systemd[1]: imwheel.service: Failed with result 'exit-code'.
$ sudo systemctl stop imwheel.service
$ sudo systemctl status imwheel.service
● imwheel.service - imwheel
   Loaded: loaded (/etc/systemd/system/imwheel.service; disabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since 火 2017-03-07 19:50:05 JST; 24h ago
 Main PID: 1045 (code=exited, status=0/SUCCESS)

 3月 07 19:50:05 yumetodo-desktop systemd[1]: Started imwheel.
 3月 07 19:50:05 yumetodo-desktop imwheel[1045]: INFO: imwheel started (pid=1112)
 3月 07 19:50:05 yumetodo-desktop imwheel[1045]: Could not open display, check shell DISPLAY variable, and export or setenv it!
 3月 07 19:50:05 yumetodo-desktop systemd[1]: imwheel.service: Control process exited, code=exited status=1
 3月 07 19:50:05 yumetodo-desktop systemd[1]: imwheel.service: Unit entered failed state.
 3月 07 19:50:05 yumetodo-desktop systemd[1]: imwheel.service: Failed with result 'exit-code'.
 3月 08 20:17:21 yumetodo-desktop systemd[1]: Stopped imwheel.
$ sudo systemctl enable imwheel.service
Created symlink from /etc/systemd/system/multi-user.target.wants/imwheel.service to /etc/systemd/system/imwheel.service.
$ sudo systemctl start imwheel.service
$ sudo systemctl status imwheel.service
● imwheel.service - imwheel
   Loaded: loaded (/etc/systemd/system/imwheel.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since 水 2017-03-08 20:17:41 JST; 2s ago
  Process: 8104 ExecStop=/usr/bin/pkill imwheel (code=exited, status=1/FAILURE)
  Process: 8100 ExecStart=/usr/bin/imwheel (code=exited, status=0/SUCCESS)
 Main PID: 8100 (code=exited, status=0/SUCCESS)

 3月 08 20:17:41 yumetodo-desktop systemd[1]: Started imwheel.
 3月 08 20:17:41 yumetodo-desktop imwheel[8100]: INFO: imwheel started (pid=8102)
 3月 08 20:17:41 yumetodo-desktop imwheel[8100]: Could not open display, check shell DISPLAY variable, and export or setenv it!
 3月 08 20:17:41 yumetodo-desktop systemd[1]: imwheel.service: Control process exited, code=exited status=1
 3月 08 20:17:41 yumetodo-desktop systemd[1]: imwheel.service: Unit entered failed state.
 3月 08 20:17:41 yumetodo-desktop systemd[1]: imwheel.service: Failed with result 'exit-code'.
$ journalctl -u imwheel
-- Logs begin at 火 2017-03-07 19:50:04 JST, end at 水 2017-03-08 20:17:44 JST. --
 3月 07 19:50:05 yumetodo-desktop systemd[1]: Started imwheel.
 3月 07 19:50:05 yumetodo-desktop imwheel[1045]: INFO: imwheel started (pid=1112)
 3月 07 19:50:05 yumetodo-desktop imwheel[1045]: Could not open display, check shell DISPLAY variable, and export or setenv it!
 3月 07 19:50:05 yumetodo-desktop systemd[1]: imwheel.service: Control process exited, code=exited status=1
 3月 07 19:50:05 yumetodo-desktop systemd[1]: imwheel.service: Unit entered failed state.
 3月 07 19:50:05 yumetodo-desktop systemd[1]: imwheel.service: Failed with result 'exit-code'.
 3月 08 20:17:21 yumetodo-desktop systemd[1]: Stopped imwheel.
 3月 08 20:17:41 yumetodo-desktop systemd[1]: Started imwheel.
 3月 08 20:17:41 yumetodo-desktop imwheel[8100]: INFO: imwheel started (pid=8102)
 3月 08 20:17:41 yumetodo-desktop imwheel[8100]: Could not open display, check shell DISPLAY variable, and export or setenv it!
 3月 08 20:17:41 yumetodo-desktop systemd[1]: imwheel.service: Control process exited, code=exited status=1
 3月 08 20:17:41 yumetodo-desktop systemd[1]: imwheel.service: Unit entered failed state.
 3月 08 20:17:41 yumetodo-desktop systemd[1]: imwheel.service: Failed with result 'exit-code'.