HA-Tools provide some programs to improve shell scripting in a high availability. HA-Tools provide some programs to improve shell scripting in a high availability halockrun environment.The program provides a simple and reliable to implement a freeze on shell scripts. A typical use for halockrun is to prevent cronjobs to run simultanously. halockrun uses a lock on a file using fcntl (2) which ensures the release of the lock, even if the process is killed through SIGKILL. Hatimerun The program provides a timeout mechanism that can be used from shell scripts.What 's new in this version: · This version contains some extensions and clarifications on the exit codes returned by halockrun and hatimerun.