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

ruby-talk
1

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.

···

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

2

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.

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On Mon, Mar 30, 2009 at 9:49 PM, Eric Milford <ericmilford@gmail.com> 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)

3

gem install sys-proctable

Regards,

Dan

···

On Mar 30, 9:49 pm, Eric Milford <ericmilf...@gmail.com> 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.

4

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

···

On Mar 30, 2009, at 11:49 PM, Eric Milford 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/\.