awk : actively tail a file & email when criteria is met

[Loïc Grenié]

2009/4/22 Evuraan::ഏവൂരാന്‍ <evuraan at gmail.com>:
> Greetings..!
>
> this below works:
>
> tail -f /var/log/apache2/access.log | \
> nawk '/192.168.1.100/{ print $0 }'
>
> and this too:
>
>  tail -f /var/log/apache2/access.log | \
> awk ' /192.168.1.100/ { system ("mail -s \"This works\" me at email.address")}'
>
> but this below, does not work:
>
>  tail -f /var/log/apache2/access.log | \
> awk ' /192.168.1.100/ {  print $0 | "mail me at email.address  "}'
>
> I tried nawk,gawk etc. still no go.

    The line above is missing a "system()" :

tail -f /var/log/apache2/access.log | \
awk ' /192.168.1.100/ {  print $0 | system("mail me at email.address  "); }'

    Does it solve your problem ? Otherwise, could you specify exactly
  what is your problem ? (Command does not start, e-mail received
  is incorrect, etc...)

      Hope this helps,

            Loïc