get process id by using it's name.

J

Jun Young Kim

Hi, folks.

first )
I have a question to get a process id by using it's name for all
platforms.

second)
If I want to kill some processes by it's name, are there efficient way
to do it for all platform?
For a solution for this problem, I am now using the following way ;)

ex)

lines = $x{ ps -Au${ENV['USER']} }.split("\r?\n")

lines.each do |line|
if line.match(process_name)
pids << line.strip.split[0]
end
end

count = 0
pids.each do |pid|
%x{ kill #{pid} }

count += 1 if $?.existstatus.zero?
end

print "total terminated processes : %d" % count

but, this way depends on only unix platforms.
moreover, I am not sure that all platform's output of "ps -Au" are same.
 
H

Heesob Park

Hi,

2009/3/24 Jun Young Kim said:
Hi, folks.

first )
I have a question to get a process id by using it's name for all platform= s.

second)
If I want to kill some processes by it's name, are there efficient way to= do
it for all platform?
For a solution for this problem, I am now using the following way ;)

ex)

lines =3D $x{ ps -Au${ENV['USER']} }.split("\r?\n")

lines.each do |line|
=C2=A0 =C2=A0 =C2=A0 =C2=A0if line.match(process_name)
=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0pids << line.strip= split[0]
=C2=A0 =C2=A0 =C2=A0 =C2=A0end
end

count =3D 0
pids.each do |pid|
=C2=A0 =C2=A0 =C2=A0 =C2=A0%x{ kill #{pid} }

=C2=A0 =C2=A0 =C2=A0 =C2=A0count +=3D 1 if $?.existstatus.zero?
end

print "total terminated processes : %d" % count

but, this way depends on only unix platforms.
moreover, I am not sure that all platform's output of "ps -Au" are same.
Try sys-proctable gem.

http://rubyforge.org/docman/view.php/610/1566/sys_proctable.html
http://www.ruby-forum.com/topic/139227#618978

Regards,

Park Heesob
 
J

Jun Young Kim

I know the sysproc library supports very good interface for this kinds =20=

of jobs.

but, sysproc doesn't support aix platforms.

$> rake test
(in /home/jykim/sys-proctable-0.8.0)
checking for rb_pid_t in ruby.h... yes
This platform not currently supported. Exiting...
.....

I need pure ruby lang based libraries or all platforms ported things :)

gamsa haeyo~

2009. 03. 24, =BF=C0=C8=C4 6:18, Heesob Park =C0=DB=BC=BA:
Hi,

2009/3/24 Jun Young Kim said:
Hi, folks.

first )
I have a question to get a process id by using it's name for all =20
platforms.

second)
If I want to kill some processes by it's name, are there efficient =20=
way to do
it for all platform?
For a solution for this problem, I am now using the following way ;)

ex)

lines =3D $x{ ps -Au${ENV['USER']} }.split("\r?\n")

lines.each do |line|
if line.match(process_name)
pids << line.strip.split[0]
end
end

count =3D 0
pids.each do |pid|
%x{ kill #{pid} }

count +=3D 1 if $?.existstatus.zero?
end

print "total terminated processes : %d" % count

but, this way depends on only unix platforms.
moreover, I am not sure that all platform's output of "ps -Au" are =20=
same.
Try sys-proctable gem.

http://rubyforge.org/docman/view.php/610/1566/sys_proctable.html
http://www.ruby-forum.com/topic/139227#618978

Regards,

Park Heesob


***************************
DSLab, CQ =B1=E8=C1=D8=BF=B5 =B5=E5=B8=B2
(02-2082-1091)
***************************
 
E

Eric Hodel

I know the sysproc library supports very good interface for this
kinds of jobs.

but, sysproc doesn't support aix platforms.

$> rake test
(in /home/jykim/sys-proctable-0.8.0)
checking for rb_pid_t in ruby.h... yes
This platform not currently supported. Exiting...
.....

I need pure ruby lang based libraries or all platforms ported
things :)

Since you seem to have access to an aix machine, I'm pretty sure it'll
be easy to add aix support. I doubt the calls needed are much
different than the other unix-based machines.
 
J

Jun Young Kim

yes, I also believe that is the best option for me :)

anyway, thanks for all.

2009. 03. 25, =BF=C0=C0=FC 3:37, Eric Hodel =C0=DB=BC=BA:
Since you seem to have access to an aix machine, I'm pretty sure =20
it'll be easy to add aix support. I doubt the calls needed are much =20=
different than the other unix-based machines.


***************************
DSLab, CQ =B1=E8=C1=D8=BF=B5 =B5=E5=B8=B2
(02-2082-1091)
***************************
 

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