Al 14/02/2012 10:32, En/na Lukasz Sokol ha escrit: > System-wide solutions for Linux is the *Unix-way*, is to create a lock-file; There are other methods, see here: http://www.ibm.com/developerworks/linux/library/l-ipc2lin3/index.html Bye -- Luca Olivetti Wetron Automation Technology http://www.wetron.es Tel. +34 935883004 Fax +34 935883007