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

[Eric Milford]

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.

 

[Glen Holcomb]

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

process_list =3D `ps aux | grep firefox`.split("\n")
process_list.each do |process|
process =3D process.split(' ')
command ||=3D []
command << process.last
pid ||=3D []
pid << process[1]
end

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

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.

--=20
"Hey brother Christian with your high and mighty errand, Your actions speak
so loud, I can=92t hear a word you=92re saying."

-Greg Graffin (Bad Religion)

 

[Daniel Berger]

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? =A0Thanks.

gem install sys-proctable

Regards,

Dan

 

[Peter Booth]

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