The HA-Tools provide some programs to improve shell scripting in a High Availability environment.
The halockrun program provides a simple and reliable way to implement a locking in shell scripts. A typical usage for halockrun is to prevent cronjobs to run simultanously. halockrun uses a lock on a file via fcntl(2) which ensures the release of the lock even if the process gets killed via SIGKILL.
The hatimerun program provides a time-out mechanism which can be used from shell scripts.
These details are provided for information only. No information here is legal advice and should not be used as such.
There are no reported vulnerabilities