On Thu, Oct 22, 2009 at 2:20 PM, KJ <[email protected]> wrote: > I don't think we've seen a linux command tip lately so here's one that I > found extremely useful a few weeks ago. We were installing 4 different > servers at the same time with the same OS. Being able to use the console > via LOM (lights out management) we were able to attach to the machines with > *pconsole* and do almost all of the install steps at the same time. Only > things like individual hostnames and IP addresses required one-on-one > action. > > HOW-TO: > Four xterms were opened and then pconsole was run in a 5th. After determing > the device for each of the other terms we then went into command mode and > "attached" to them. Here is some screen capture from a session. > > Many of you may have used pconsole or dsh to work with clustered systems, > for me this was new but I can see where it could have made my life easier so > many times in the past. > > host$ sudo pconsole >>>> attach /dev/pts/2 >>>> attach /dev/pts/3 > > At this point you will see a message in terms 2 & 3 saying [pconsole > attached from tty /dev/pts/6]. > >>>> connect > Press <Ctlr-A> for command mode > > > > Now run all your commands on terms 2 & 3 here, enjoy the awesomeness, use > your power only for good. > > > <CTRL-A> >>>> detach /dev/pts/2 > detaching from /dev/pts/2 : Ok >>>> exit > > > So you can see how this could be used after doing ssh to several remote > servers, or many other means of connecting. > > ================================================================== > pconsole command mode >>>> help > help Give help about the available commands > ? short-cut for 'help' > version Display version information > echo Turn echo on or off > attach Attach to a tty device > detach Detach from a tty device > list Show devices currently attached to > connect Leave command mode > quit Exit pconsole > exit Exit pconsole > >>>> >
That's kind of awesome. It's like screen, but in reverse. Instead of multiple sessions on one machine, it's multiple machines on one session. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "NLUG" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nlug-talk?hl=en -~----------~----~----~----~------~----~------~--~---
