System Settings/Task Scheduler/it: Difference between revisions
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Task Scheduler is a graphical front end to the standard "cron" utility. With it, commands (or "tasks") can be run at specific times, on a certain day or date, or at specific intervals (time between execution). | |||
[[Image:Kcron-screenshot-de.png|thumb|300px|center|Task Scheduler in Plasma 5]] | |||
=== Utilizzo === | === Utilizzo === | ||
In KDE 4.4 '''KCron''' è un modulo accessibile in <menuchoice>Impostazioni di sistema -> Avanzate -> sezione Sistema -> Pianificatore di operazioni</menuchoice>. Se non è presente controlla di aver installato il pacchetto '''kdeadmin'''. In KDE 4.5 lo troverai in <menuchoice>Impostazioni di sistema -> sezione Amministrazione del sistema -> Pianificatore di operazioni</menuchoice>. Alcune distro creano un pacchetto separato per '''KCron''', dunque se non lo vedi dovresti cercare questo termine nel tuo repository. | |||
=== Adding and Modifying tasks === | |||
* Click <menuchoice>New Task...</menuchoice> to add a new task, or "Modify" to modify an existing task. The '''Add or modify existing task''' page will be displayed. | |||
[[Image:kcron-task-dialog.png|thumb|300px|center|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 <menuchoice>OK</menuchoice>. The task will be added and scheduled if enabled. | |||
{{Tip|Click <menuchoice>Run Now</menuchoice> 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. | |||
* Enter the name of the variable to use. This name: | |||
** Must consist of letters, digits, and underscore ('_') only | |||
** 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 | |||
* The value the variable will contain. This can be a number or string. | |||
* Enter a brief description of the variable. | |||
=== Suggerimenti === | === Suggerimenti === | ||
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* Lo strumento a riga di comando che ti permette di vedere i cron-jobs attualmente definiti è {{Input|1=crontab -l}} (l'ultima è la lettera L). | * Lo strumento a riga di comando che ti permette di vedere i cron-jobs attualmente definiti è {{Input|1=crontab -l}} (l'ultima è la lettera L). | ||
==More Information== | |||
* [https://docs.kde.org/stable5/en/kdeadmin/kcontrol5/kcron/index.html KDE official documentation] | |||
* [https://en.wikipedia.org/wiki/Cron Cron] (Wikipedia) | |||
* [https://wiki.archlinux.org/index.php/cron Cron] (Arch Linux wiki) | |||
[[Category:Sistema/it]] | [[Category:Sistema/it]] |
Latest revision as of 08:30, 1 June 2019
Informazioni generali
KCron è uno strumento per eseguire automaticamente applicazioni ad intervalli regolari. È un'interfaccia grafica per il comando Cron.
KCron è un'applicazione standard negli ambienti KDE. |
Task Scheduler is a graphical front end to the standard "cron" utility. With it, commands (or "tasks") can be run at specific times, on a certain day or date, or at specific intervals (time between execution).
Utilizzo
In KDE 4.4 KCron è un modulo accessibile in
. Se non è presente controlla di aver installato il pacchetto kdeadmin. In KDE 4.5 lo troverai in . Alcune distro creano un pacchetto separato per KCron, dunque se non lo vedi dovresti cercare questo termine nel tuo repository.Adding and Modifying tasks
- Click to add a new task, or "Modify" to modify an existing task. The Add or modify existing task page will be displayed.
- 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 . The task will be added and scheduled if enabled.
Tip
Click
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.
- Enter the name of the variable to use. This name:
- Must consist of letters, digits, and underscore ('_') only
- 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
- The value the variable will contain. This can be a number or string.
- Enter a brief description of the variable.
Suggerimenti
- Tutti i file che vengono modificati si trovano nella cartella /etc/cron dove ci sono numerosi file da guardare.
- Lo strumento a riga di comando che ti permette di vedere i cron-jobs attualmente definiti è
crontab -l
(l'ultima è la lettera L).
More Information
- KDE official documentation
- Cron (Wikipedia)
- Cron (Arch Linux wiki)