<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta content="text/html;charset=UTF-8" http-equiv="Content-Type"></head><body ><br><span style="font-family: Verdana,Arial,Helvetica,sans-serif;">I have 2 script. Script "A", Script "B".<br><br>Script "A" is regulary watching the "dhcpacks" [dhcp release is configured to 2mins] in the logs, for the past 2 minutes. it writes the MAC addresses to a file [/dev/shm/dhcpacks-in-last-2min.txt] every 2 minutes. Ok, this is working, active clients are in this file. Super!<br><br>Script "B": <a href='http://pastebin.com/raw.php?i=wvhwhPWu' target='_blank'>http://pastebin.com/raw.php?i=wvhwhPWu</a><br>I'm trying to create a script, that watches the changes in "/dev/shm/dhcpacks-in-last-2min.txt" file [in every 1 sec]. Ok. But: my "watcher" script [the pastebined] is not working fine...sometime it works, sometime it send that someone "XY logged out", but it's not true! nothing happened, and the problem is not in the Script "A".<br><br>Can someone help me point out, what am i missing? How can i watch a file [in every sec], that contains only MAC addresses, and if someone doesn't get dhcpack in 2 minutes, the file "/dev/shm/dhcpacks-in-last-2min.txt" changes, and that clients MAC address will be gone from it, and i need to know, who was it [pastebined my script..but somethings wrong with it].<br><br>Thank you for any help..i've been pathing my script for days now.. :\</span><br><div id=""></div></body></html>