System Settings/Task Scheduler/es: Difference between revisions

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* 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

Información general

KCron es una herramienta para ejecutar aplicaciones en segundo plano a intervalos regulares. Es una interfaz gráfica para el comando Cron.

KCron es una aplicación estándar que es preempaquetada con entornos de trabajo de KDE.

Uso

En En 4.4 KCron es un módulo que puede ser encontrado en Preferencias del sistema -> Avanzado -> sección Sistema -> Planificador de tareas. Si no aparece, por favor comprueba si tienes instalado el paquete kdeadmin. En KDE 4.5 lo encontrarás en Preferencias del sistema -> sección Administración del sistema -> Planificador de tareas. Algunas distribuciones tienen a KCron en un paquete separado, por lo que si no es visible deberías buscarlo en tus repositorios.

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.

Sugerencias

  • Todos los archivos que se modifican se encuentran en el directorio /etc/cron donde hay muchos archivos que mirar.
  • La herramienta en línea de comandos que te permite echar un vistazo a los trabajos instalados en cron es
    crontab -l
    (es una letra L).

More Information