System Settings/Task Scheduler/da: Difference between revisions

From KDE UserBase Wiki
(Updating to match new version of source page)
(Updating to match new version of source page)
Line 44: Line 44:
* Enter the name of the variable to use. This name:
* Enter the name of the variable to use. This name:
** Must consist of letters, digits, and underscore ('_') only
** Must consist of letters, digits, and underscore ('_') only
** Must start with a latter
** Must start with a letter
** Should not be a reserved or commonly used system variable. See https://pubs.opengroup.org/onlinepubs/000095399/basedefs/xbd_chap08.html for more information
** Should not be a reserved or commonly used system variable. See https://pubs.opengroup.org/onlinepubs/000095399/basedefs/xbd_chap08.html for more information



Revision as of 10:40, 6 February 2019

Generel Information

KCron lader dig køre programmer i baggrunden med regulære intervaller. Det er en grafisk brugerflade for Cron-kommandoen.

KCron er et standardprogram, som følger med KDE's arbejdsomgivelser.

Brug

I 4.4 er KCron et modul, som findes i Systemindstillinger -> Avanceret -> System -> Opgaveskemalægger. Hvis den ikke findes der, så bør du sikre dig, at du har pakken kdeadmin installeret. I KDE 4.5 og senere versioner finder du den i Systemindstillinger -> afsnittet Systemadministration -> Opgaveskemalægger. I nogle distributioner kommer KCron som en særskilt pakke, så hvis du ikke kan se den, så søg i pakkearkiverne efter den.

Adding and Modifying tasks

  • Click New Task... to add a new task, or "Modify" to modify an existing task. The Add or modify existing task page will be displayed.
The "Add or modify task" page of SystemSettings
  • Enter the command to be run. Click the folder icon to choose it from a dialog.
  • Enter a comment (optional). This should be descriptive, explaining what the task will do as the command may not always be obvious.
  • Click Enable this task to enable the task to run.
  • Click Run at system bootup to enable the script to run each time the system is booted.
  • Click Run every day to enable the script to run every day. This will automatically select the appropriate options.
  • Using the buttons, choose when the command should be run. Not all parameters are required, those not needed may be left blank.
    • Hours and Minutes are the time of day to run the task, not an interval.
  • When done, click OK. The task will be added and scheduled if enabled.

Tip

Click Run Now to run a task immediately after adding or modifying the task.


Removing a task

To completely remove a task, select the task from the list and click the Delete button. This will permanently remove the task.

Environment Variables

Sometimes a task or multiple tasks need a specific variable set, it must be added in the Environment Variables section. The cron utility uses its own environment, system-wide and user-specific variables are not used. Click New Variable to add a new variable definition, or Modify to change an existing variable.

  • The value the variable will contain. This can be a number or string.
  • Enter a brief description of the variable.

Tips

  • Alle de filer, som modificeres findes i mappen /etc/cron, hvor der er mange filer, som kan bruges som eksempler.
  • Kommandolinje-værktøjet til at se det aktuelt installerede cron-job er
    crontab -l
    (det er bogstavet L).

More Information