topic Re: Script help in Operating System - Linux

Script help

Diesel — Mon, 05 Dec 2005 15:08:49 GMT

Hello,

I would like to know how to search through the host table to match computers on a particular subnet, then to give the total number matched at the end using a while loop or something (my scripting knowledge is very limited).

Any ideas would be greatly appreciated.

Re: Script help

Pete Randall — Mon, 05 Dec 2005 15:14:57 GMT

How about a simple grep/wc?

grep xxx.xxx.xxx /etc/hosts |wc -l

Pete

Re: Script help

Jeff_Traigle — Mon, 05 Dec 2005 15:22:07 GMT

This could get a bit more complex depending on how your subnets are configured. Generally, you can do something like this, however:

grep -c ^WWW.XXX.YYY. /etc/hosts

-c returns the count instead of the matches (saves the piping of grep to wc)

^ only matches if the address is at the beginning of the line (avoids grabbing commented lines)

Re: Script help

Diesel — Mon, 05 Dec 2005 16:02:23 GMT

Thanks guys! That's what I needed.

And thanks Jeff for the detailed explanation. It helps the newbies like myself.