Very Computer

by **Hermini** » Thu, 03 Jan 2002 11:27:14

Could someone tell me how to assign a DHCP IP address to a variable? I
have a command that extracts the DHCP IP address but I can't assign the
results to a variable. Here is the command:

ifconfig eth0 | grep " addr:" | cut -d ":" -f2 | cut -f1 -d " "

I need to assign the results of the command above to a variable.
Preferrably DHCP_IP.

I've tried DHCP_IP=<command> but that doesn't work.

Any help will be greatly appreciated.

by **Russe** » Thu, 03 Jan 2002 12:56:50

+ Could someone tell me how to assign a DHCP IP address to a variable? I
+ have a command that extracts the DHCP IP address but I can't assign the
+ results to a variable. Here is the command:
+
+ ifconfig eth0 | grep " addr:" | cut -d ":" -f2 | cut -f1 -d " "
+

that's horrible. don't use cut, there's rarley a need for it. you're
forking two unnecessary processes.

you want something like;

var=`ifconfig eth0 | sed '/.*addr:/!d;s///;s/ .*//'`

r.

by **Hermini** » Thu, 03 Jan 2002 14:50:31

> On Wed, 02 Jan 2002 02:27:14 GMT, Herminio

> assign a DHCP IP address to a variable? I + have a command that
> extracts the DHCP IP address but I can't assign the + results to a
> variable. Here is the command: +
> + ifconfig eth0 | grep " addr:" | cut -d ":" -f2 | cut -f1 -d " " +

> that's horrible. don't use cut, there's rarley a need for it. you're
> forking two unnecessary processes.

> you want something like;

> var=`ifconfig eth0 | sed '/.*addr:/!d;s///;s/ .*//'`

> r.

Thank you very much. Your suggestion works. I'll try to keep my process
forking to a minimum. :)

Very Computer

Assigning DHCP IP Address to a variable

Assigning DHCP IP Address to a variable

Assigning DHCP IP Address to a variable

Assigning DHCP IP Address to a variable