Linux lockfile explained, how to use them the easy or hard way. You may have experienced it before, you create a cronjob to change some data every X hour or minutes and one day this job takes longer than it usually does and cron spawns another job before the first one is finished. This can result in data corruption or deletion of data that should not have been deleted, all depending on what the cronjob is set up to do.

Hier gibt es Einblicke in viele Themen rund um Betriebssysteme und Softwareentwicklung. In der letzten Woche ist etwas passiert was ich nie erwartet hätte. NET Framework komplett Open Source legen. Dies heißt also, dass es möglich wird bei entsprechender Lizenz das Framework auf allmögliche Systeme zu portieren. Bisher gab es nur zwei Möglichkeiten. Ansonsten freut mich der Schritt schon sehr.

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