V1.1: refactor usage
V1.2: Added Check for empty command line parameter
V1.3: added pid file handling
V1.4: Added possibility to provide process name which is set in /proc/.../stat
Merge branch 'master' of https://github.com/flonatel/pipexec
Added more usage
Fixed two typos in log messages
Clean removes the core
Restart the children also when they were signaled