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Use journalctl to show logs of specific unit which has a parameter?


Where is / why is there no log for normal user systemd services?I can't enable or disable a user service: Failed to execute operation: No such file or directoryDoes journalctl give access to all logs?Reloading systemd-journald configHow to use systemd aliases with journalctl?Why journalctl outputs in ASCII?Why journalctl does not display log message if I use filtering by unit?Bypass systemd-journald to send messages directly to ryslog daemonSystemd service isn't restarted, no explanation of failureGetting systemd service logs faster from my service






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I have one systemd service which runs with systemctl --user start test_unit@random_arguments. How could I use journalctl to filter all logs of test_unit? If it supports "follow mode", that's even better.










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    I have one systemd service which runs with systemctl --user start test_unit@random_arguments. How could I use journalctl to filter all logs of test_unit? If it supports "follow mode", that's even better.










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      0












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      0








      I have one systemd service which runs with systemctl --user start test_unit@random_arguments. How could I use journalctl to filter all logs of test_unit? If it supports "follow mode", that's even better.










      share|improve this question









      New contributor




      Guisong He is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      I have one systemd service which runs with systemctl --user start test_unit@random_arguments. How could I use journalctl to filter all logs of test_unit? If it supports "follow mode", that's even better.







      systemd systemd-journald journalctl






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      Guisong He is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      share|improve this question









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      share|improve this question




      share|improve this question








      edited 2 days ago







      Guisong He













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      asked 2 days ago









      Guisong HeGuisong He

      1034




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      New contributor





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          1 Answer
          1






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          oldest

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          1














          If this is a user unit, use the --user-unit option:



          journalctl -f --user-unit=test_unit@random_arguments


          Otherwise, filter the unit with _SYSTEMD_UNIT:



          sudo journalctl -f _SYSTEMD_UNIT=test_unit@random_arguments





          share|improve this answer























          • Thanks. The --user option saves my day. journalctl --user -u test_unit@* -f works

            – Guisong He
            2 days ago






          • 1





            Right, --user-unit combines --user and -u ;-).

            – Stephen Kitt
            2 days ago











          Your Answer








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          1 Answer
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          active

          oldest

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          1 Answer
          1






          active

          oldest

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          active

          oldest

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          active

          oldest

          votes









          1














          If this is a user unit, use the --user-unit option:



          journalctl -f --user-unit=test_unit@random_arguments


          Otherwise, filter the unit with _SYSTEMD_UNIT:



          sudo journalctl -f _SYSTEMD_UNIT=test_unit@random_arguments





          share|improve this answer























          • Thanks. The --user option saves my day. journalctl --user -u test_unit@* -f works

            – Guisong He
            2 days ago






          • 1





            Right, --user-unit combines --user and -u ;-).

            – Stephen Kitt
            2 days ago















          1














          If this is a user unit, use the --user-unit option:



          journalctl -f --user-unit=test_unit@random_arguments


          Otherwise, filter the unit with _SYSTEMD_UNIT:



          sudo journalctl -f _SYSTEMD_UNIT=test_unit@random_arguments





          share|improve this answer























          • Thanks. The --user option saves my day. journalctl --user -u test_unit@* -f works

            – Guisong He
            2 days ago






          • 1





            Right, --user-unit combines --user and -u ;-).

            – Stephen Kitt
            2 days ago













          1












          1








          1







          If this is a user unit, use the --user-unit option:



          journalctl -f --user-unit=test_unit@random_arguments


          Otherwise, filter the unit with _SYSTEMD_UNIT:



          sudo journalctl -f _SYSTEMD_UNIT=test_unit@random_arguments





          share|improve this answer













          If this is a user unit, use the --user-unit option:



          journalctl -f --user-unit=test_unit@random_arguments


          Otherwise, filter the unit with _SYSTEMD_UNIT:



          sudo journalctl -f _SYSTEMD_UNIT=test_unit@random_arguments






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered 2 days ago









          Stephen KittStephen Kitt

          180k25408486




          180k25408486












          • Thanks. The --user option saves my day. journalctl --user -u test_unit@* -f works

            – Guisong He
            2 days ago






          • 1





            Right, --user-unit combines --user and -u ;-).

            – Stephen Kitt
            2 days ago

















          • Thanks. The --user option saves my day. journalctl --user -u test_unit@* -f works

            – Guisong He
            2 days ago






          • 1





            Right, --user-unit combines --user and -u ;-).

            – Stephen Kitt
            2 days ago
















          Thanks. The --user option saves my day. journalctl --user -u test_unit@* -f works

          – Guisong He
          2 days ago





          Thanks. The --user option saves my day. journalctl --user -u test_unit@* -f works

          – Guisong He
          2 days ago




          1




          1





          Right, --user-unit combines --user and -u ;-).

          – Stephen Kitt
          2 days ago





          Right, --user-unit combines --user and -u ;-).

          – Stephen Kitt
          2 days ago










          Guisong He is a new contributor. Be nice, and check out our Code of Conduct.









          draft saved

          draft discarded


















          Guisong He is a new contributor. Be nice, and check out our Code of Conduct.












          Guisong He is a new contributor. Be nice, and check out our Code of Conduct.











          Guisong He is a new contributor. Be nice, and check out our Code of Conduct.














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