Re: Newbie question on awk

On Fri, 04 Jan 2008 08:24:46 -0800, Zinger wrote:

> Hi All,
> 
> I want to be able to read the contents of a file as below:-
> 
> ==================================
> There are 4 occurrences
> 
> These occurrences are listed below:
> machine1---RUNNING
> machine2---STOPPED
> machine3---WORKING
> machine4---RUNNING
> 
> ==================================
> 
> I want the script to pick all the machines in RUNNING state i.e.
> machines1 and 4 and assign their names to a variable for further
> manipulation.
> 
> Do I use awk?

 Well, the real answer depends much on the rest of what you
expect to do overall, but just supposing you really want to
fill a variable with previous problem description, it's
possible to do for instance:

$ woooop=$(awk '$NF=="RUNNING"{print $1}' FS=- yourfile)

 or backticks instead of ba****sm:
$ woooop=`awk '$NF=="RUNNING"{print $1}' FS=- yourfile`


 then use your variable at your will:
$ echo ${woooop} 
machine1 machine4

$ echo "${woooop}"
machine1
machine4