lsof?

Steve Smythe ssmythe at channelpoint.com
Wed Jul 25 10:37:52 CDT 2001


Not to contribute anything useful, but since there's a "lsof"
command, don't you think there should be more useful commands
like "rotfl" and "rtfm"?  :-)

Steve

> -----Original Message-----
> From: Robert L. Harris [mailto:Robert.L.Harris at rdlg.net]
> Sent: Wednesday, July 25, 2001 9:32 AM
> To: Keary Suska
> Cc: Pikes-Peak Perl Mongers
> Subject: Re: lsof?
> 
> 
> 
> 
> Yeah, I'm currently doing an open so I can parse the input
> one line at a time with a while statement (just like how it
> works).  I was hoping there might be a module I don't know about
> that'll provide similar functionality without having to call 
> an external program.
> 
> Robert
> 
> Thus spake Keary Suska (aksuska at webflyer.com):
> 
> > I am not familiar with "lsof", but you can use backticks:
> > 
> >     @array = ` lsof -i | grep <port>`;
> > 
> > Or open a pipe-from:
> > 
> >     open PIPE, "lsof -i | grep <port> |";
> > 
> > Beware of security problems when using these--don't pass 
> any tainted data.
> > You may also want to install a signal handler for SIGPIPE, which is
> > triggered when you have a broken pipe. Otherwise, you 
> really don't have any
> > idea if your pipe attempt failed.
> > 
> > Keary Suska
> > Esoteritech, Inc.
> > "Leveraging Open Source for a better Internet"
> > 
> > > From: "Robert L. Harris" <Robert.L.Harris at rdlg.net>
> > > Date: Tue, 24 Jul 2001 15:28:24 -0600
> > > To: Pikes-Peak Perl Mongers 
> <pikes-peak-pm-list at happyfunball.pm.org>
> > > Subject: lsof?
> > > 
> > > 
> > > 
> > > OK,
> > > I've gotten a great response from you guys.  Definitely 
> blows away the
> > > 2 other perl lists I'm on, and the answers are nice, 
> clean and consice,
> > > even my spelling is pretty rotten.
> > > 
> > > I have another one for you.  In the same script I need to 
> do something
> > > like "lsof -i | grep <port>" to find out what process is  
> using a port,
> > > or possibly an IP.  I can't find an "lsof" module, so I'm 
> hoping someone
> > > may know something similar.
> > > 
> > > Thoughts?
> > > Robert
> > > 
> > > 
> > > :wq!
> > > 
> --------------------------------------------------------------
> -------------
> > > Robert L. Harris                |  Micros~1 :
> > > Senior System Engineer          |    For when quality, reliability
> > > at RnD Consulting             |      and security just aren't
> > > \_       that important!
> > > DISCLAIMER:
> > > These are MY OPINIONS ALONE.  I speak for no-one else.
> > > FYI:
> > > perl -e 'print 
> $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);'
> > > 
> > > 
> 
> 
> 
> :wq!
> --------------------------------------------------------------
> -------------
> Robert L. Harris                |  Micros~1 :  
> Senior System Engineer          |    For when quality, reliability 
>   at RnD Consulting             |      and security just aren't
>                                 \_       that important!
> DISCLAIMER:
>       These are MY OPINIONS ALONE.  I speak for no-one else.
> FYI:
>  perl -e 'print 
> $i=pack(c5,(41*2),sqrt(7056),(unpack(c,H)-2),oct(115),10);'
> 



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