From: jackster the jackle <contact@...>
Date: 2007-12-14T03:57:17+09:00
Subject: Re: Showing Running Processes in variable

Thanks for the help Darren....what you proposed works but it doesn't 
print out the processes in a viewable table in rails....I think I 
somehow need to add a "\n" or a line break to the result....This might 
be a rails question now but just in case you might know, here is what I 
have in my controller:

def processes
x=`ps -el`
y=x.split("\n")
y.each do |line|
end
return y
end

Then I simply display the variable in my view with: <%= processes() %>

Here is what the view looks like:

F S UID PID PPID C PRI NI ADDR SZ WCHAN TTY TIME CMD000 S 2202 11254 1 0 
75 0 - 545 wait4 ? 00:00:00 mysqld_sa000 S 2202 11342 11254 0 80 5 - 
5887 schedu ? 00:00:00 mysqld040 S 2202 11368 11342 0 80 5 - 5887 schedu 
? 00:00:01 mysqld040 S 2202 11370 11368 0 80 5 - 5887 rt_sig ? 00:00:00 
mysqld000 S 2202 22812 1 0 75 0 - 5744 schedu ? 00:00:00 dispatch.000 S 
2202 23955 1 0 75 0 - 5322 schedu ? 00:00:00 dispatch.100 S 2202 23807 
23691 0 75 0 - 579 schedu pts/4 00:00:00 sh000 T 2202 26309 23807 0 75 0 
- 1137 do_sig pts/4 00:00:00 irb040 S 2202 18127 1 2 75 0 - 6578 schedu 
? 00:00:00 httpd040 S 2202 18132 18127 0 75 0 - 6299 schedu ? 00:00:00 
httpd040 S 2202 18172 18127 0 75 0 - 6605 schedu ? 00:00:00 httpd000 S 
2202 18178 18132 17 79 0 - 5475 pipe_w ? 00:00:00 dispatch.040 S 2202 
18185 18127 0 76 0 - 6581 schedu ? 00:00:00 httpd000 R 2202 18218 18178 
0 80 0 - 397 - ? 00:00:00 ps100 S 2202 18219 1475 0 77 0 - 503 wait4 ? 
00:00:00 sps000 R 2202 18235 18219 0 78 0 - 897 - ? 00:00:00 ps

Thanks again,

jackster

darren kirby wrote:
> quoth the jackster the jackle:
>> I want to capture the list of running processes on my computer. I am to
>> get all the data into my variable with a simple system call:
>>
>> x = `ps -el`
>>
>> My problem comes when I want to display the data back out in a legible
>> format that makes sense.
>>
>> What is the best way to do this?
> 
> Not sure if this is the best but:
> 
> x.split("\n").each do |line|
>   puts line
> end
> 
> works for me.
> 
>> thanks
>>
>> jackster
> 
> -d

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