[wplug] My IP address *only*
Jonathan Billings
billings at negate.org
Fri Mar 31 17:40:23 EST 2006
On Mar 31, 2006, at 4:35 PM, Janos Dohanics wrote:
> I wanted to extract my system's IP address only and came up with:
> ifconfig rl0 | grep "\<inet\>" | cut -d " " -f 2
> Is there a more direct way to do this?
Extracting it from the output of ifconfig is probably the best way to
do it, any helper utilities are probably wrappers around ifconfig.
> And a second question: How can I customize my crontab's subject line?
I assume you mean the mail sent by cron. I don't believe you can
change this in an individual crontab, however you can probably alter
the subject by running crond with the -m flag and pass it a special
program that runs sendmail while setting a certain subject. This
would affect all mail sent by cron.
One of the ways to avoid all this is to not leave it up to cron to
send the mail. Either have the program itself generate the email, or
pipe the output of the program to a mailer with the appropriate flags
to set the subject, like "mail -s <subject> foo at bar.com".
--
Jonathan Billings <billings at negate.org>
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