Managing time-triggered events with Zeit
Alarms and Timers
Zeit also allows you to set alarms and timers. You can access the alarms via Tools | Alarm or by pressing Ctrl+L. In the dialog box, you then need to add a description for the alarm, an audio player including the music file to be played, and the times at which you want the alarm to be triggered (Figure 4).
The Timer dialog box looks almost identical to Figure 4. There is only one additional selection box, labeled Show OSD notification, for a Notification window that controls whether Zeit displays a message on the desktop when the timer expires. You can access the function via Tools | Timer or by pressing Ctrl+T.
Alternatives
If Zeit is not your cup of tea, there are also quite a few web-based tools that at least make it easier to create crontab
entries. One candidate, crontab guru [6], lets you first formulate the entry in the web interface and then transfer the results to your system's crontab (Figure 5).
I found the description above the gray input field in crontab guru very helpful because it translates the crontab
specification into plain English. The gray field in the middle is an input box where you can edit the value directly, upon which the description changes. Below the input field, you will find explanations for the columns – minute, hour, day, month, and weekday – as well as the values allowed for each column.
Crontab UI [7] is a web front end used primarily for servers. The tool, written in JavaScript (Figure 6), offers extensive options. In addition to the ability to directly edit crontab
entries, it provides functions for backing up the crontab
and for manually starting, pausing, and terminating jobs.
Conclusions
Zeit worked without any issues in testing and integrated cleanly with my system. The entries Zeit generated for crontab
and at
were also flawless (Figure 7), making it a promising tool for managing the time-triggered jobs.
Infos
- Gnome Schedule: http://gnome-schedule.sourceforge.net
- Gnome Task Scheduler: https://piki.org/patrick/gat
- Zeit on Launchpad: https://launchpad.net/zeit
- Zeit page on GitHub: https://github.com/loimu/zeit
- Zeit PPA: https://launchpad.net/~blaze/+archive/ubuntu/main/+packages
- crontab guru: https://crontab.guru
- Crontab UI: https://github.com/alseambusher/crontab-ui
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