How to get list of all processes and the kill by name

I am working on a scraper that blows up if an instance of Firefox is
already running (launched via Firewatir) so I want to put in code that
first checks for any existing Firefox processes and issues a kill to
their PIDs.

I’m really new to Ruby – how can I best accomplish this? Thanks.

I would just use the system for it. But if you really want to do it in
Ruby
you could do something like this:

process_list = ps aux | grep firefox.split("\n")
process_list.each do |process|
process = process.split(’ ')
command ||= []
command << process.last
pid ||= []
pid << process[1]
end

Then you can kill stuff based on command to your hearts content.

On Mon, Mar 30, 2009 at 9:49 PM, Eric M. [email protected]
wrote:

I am working on a scraper that blows up if an instance of Firefox is
already running (launched via Firewatir) so I want to put in code that
first checks for any existing Firefox processes and issues a kill to
their PIDs.

I’m really new to Ruby – how can I best accomplish this? Thanks.

Posted via http://www.ruby-forum.com/.


“Hey brother Christian with your high and mighty errand, Your actions
speak
so loud, I can’t hear a word you’re saying.”

-Greg Graffin (Bad Religion)

On Mar 30, 9:49 pm, Eric M. [email protected] wrote:

I am working on a scraper that blows up if an instance of Firefox is
already running (launched via Firewatir) so I want to put in code that
first checks for any existing Firefox processes and issues a kill to
their PIDs.

I’m really new to Ruby – how can I best accomplish this? Thanks.

gem install sys-proctable

Regards,

Dan

It’s OS specific. killall Firefox is a good place to start.

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