On Sat, 27 Mar 2010 13:07:14 +0100, Jozsef Vadkan <jozsi.avad...@gmail.com> wrote: > Why doesn't my "internet-connection" script work? > > When I plug the ethcable out, it just waits...and waits...and waits...
It doesn't even work correctly: Now as I definitely have Internet connection, it prints "NO INTERNET CONNECTION". Allow me a comment: #!/bin/bash This is Linux. It is not portable. FreeBSD is NOT Linux. In FreeBSD, the standard scripting shell is the Bourne shell /bin/sh. Unless you don't require things that are specific to bash, use the correct shebang for shm which is #!/bin/sh If you intendedly want to use bash, specify it correctly: #!/usr/local/bin/bash The bash is an additional package for FreeBSD, it does not belong to the OS itself. It needs to be installed. Of course, there's a way to make bash available as /bin/bash statically linked, but with all thoughts to interoperability, I wouldn't rely on this. Let me bring the script into a more easily readable form and allow me to say something about it: #!/bin/sh function internet_connection_ok { echo "Testing internet connection....please wait..." if ping -W 1 -c 4 bix.hu | grep -q "4 received"; then if ping -W 1 -c 4 www.yahoo.com | grep -q "4 received"; then echo "NET is OK" else echo "NO INTERNET CONNECTION" exit 1 fi else echo "NO INTERNET CONNECTION" exit 1 fi } internet_connection_ok Basically, you're relying on a 100 % correct reception of pings from two specified host to see if Internet is up and running. In case of package loss, even with running Internet (e. g. 4 sent, 3 received), the script would say that there's no Internet connection, which is false. Additionally, you're giving only 1 ms for reply, which may not be enough for a slow (but stable) connection. Finally, you're relying on DNS to get the IPs to ping for bix.hu and www.yahoo.com. I'm not sure if this resolve time is important here, too. -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ... _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"