Re: [gentoo-dev] init.d net scripts & Bash wierdness - idiot in distress

[Sylvain]

Hi !

[couic]
> You can see where I've tried `echo "foo"` and `echo "wibble"` for
> debugging purposes. When I use this script as /etc/init.d/net.br0 & type
> `rc bridge` the "foo" & "bar" are displayed, but not the "wibble".
> Clearly the `if [ -n "${gateway}" ]...` line is not being returning
> true; yet I do not understand why, as my script seems to be just the
> same as the standard net.eth0 script in this respect, and my config file
> (also attached) seems the same.
>

Maybe echoing ${gateway} ${gateway%/*} and ${IFACE} befor the 'if'
could help. Something like that :
echo "gw:-${gateway}-"
echo "if1:-${gateway%/*}-"
echo "if2:-${IFACE}-"

[couic]
> I would guess that the list of physical devices might be stored in an
> array, or read from a list, but I am completely inexperienced at Bash
> scripting, so have no idea how to implement this. I found the Advanced
> Bash Scripting Guide a bit too advanced for me - can anyone recommend an
> alternative..? Is the O'Reilly Bash in a Nutshell any good..? I usually
> like their books.

Just add a simple variable in the conf.d/net.br0 file :
br_interfaces="eth0 eth1 eth2" # For example

and for the loop in the init.d/net.br0 script :

for br_if in ${br_interfaces} 
  do
  ifconfig ${br_if} 0.0.0.0
  done

brctl addbr ${IFACE}

for br_if in ${br_interfaces} 
  do
  brctl addif ${IFACE} ${br_if}
  done

Maybe you could have a little training in an xterm about the 'for' loop :-)
for i in a b c ; do echo $i ; done

regards,

sylvain



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