- WLUG - wlug.mailman3.com

Re: [Wlug] ls character range wildcard oddity? (Dennis Payne)
by Aljerin Butler,Jr. June 23, 2015

June 23, 2015

If you're still searching for an answer, you might want to research my websitehere http://customdesktopsolutions.mywebcommunity.org/index.php/help-for-do-it-y… or here Linux sysadmin-addendum | | | | | | | | | Linux sysadmin-addendumLinux sysadmin-addendum Details Category: Creating and using FOSS Published on Friday, 05 June 2015 23:50 Written by Super User Hits: 12 So you want to be a Linux sysadmin? | | | | View on customdesktopsolutions.mywebcommunity.org | Preview by Yahoo | | | | | Al Butler From: "wlug-request(a)mail.wlug.org" <wlug-request(a)mail.wlug.org> To: wlug(a)mail.wlug.org Sent: Friday, June 19, 2015 12:00 PM Subject: Wlug Digest, Vol 140, Issue 7 ----- Forwarded Message ----- Send Wlug mailing list submissions to wlug(a)mail.wlug.org To subscribe or unsubscribe via the World Wide Web, visit http://mail.wlug.org/mailman/listinfo/wlug or, via email, send a message with subject or body 'help' to wlug-request(a)mail.wlug.org You can reach the person managing the list at wlug-owner(a)mail.wlug.org When replying, please edit your Subject line so it is more specific than "Re: Contents of Wlug digest..." Today's Topics: 1. Re: ls character range wildcard oddity? (Dennis Payne) Interesting. I see the same behavior. Near as I can tell bash decided that the alphabet is: aAbBcCdD... I wouldn't expect that to be the case but when I played around with various file name that was the behavior I saw. So [a-c] includes upercase B while [a-b] does not. 'ls [A-c]*' will show Berry but not apple. On Fri, 2015-06-19 at 09:29 -0400, Brett Russ wrote: Can someone explain this to my evidently inadequately caffeinated brain? I was trying to use a lower case character range wildcard to list all files not starting with an uppercase letter and I noticed it wasn't working as I'd expect. So I created this simple example and still don't understand what's happening. Dir with two files: brett@spider /tmp/test $ \ls apple Berry This is what I'd expect to see: brett@spider /tmp/test $ \ls [a-b]* apple This makes no sense. Is this a bug?: brett@spider /tmp/test $ \ls [a-c]* apple Berry >From here on are just a few extra examples confirming the oddity of the above. brett@spider /tmp/test $ \ls [a]* apple brett@spider /tmp/test $ \ls [b]* ls: cannot access [b]*: No such file or directory brett@spider /tmp/test $ \ls [c]* ls: cannot access [c]*: No such file or directory brett@spider /tmp/test $ \ls a* apple brett@spider /tmp/test $ \ls b* ls: cannot access b*: No such file or directory brett@spider /tmp/test $ \ls c* ls: cannot access c*: No such file or directory brett@spider /tmp/test $ dpkg -S `which ls` coreutils: /bin/ls brett@spider /tmp/test $ dpkg -s coreutils Package: coreutils Essential: yes Status: install ok installed Priority: required Section: utils Installed-Size: 6020 Maintainer: Ubuntu Developers <ubuntu-devel-discuss(a)lists.ubuntu.com> Architecture: amd64 Multi-Arch: foreign Version: 8.21-1ubuntu5.1 [SNIP] Thanks, Brett _______________________________________________ Wlug mailing list Wlug(a)mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug _______________________________________________ Wlug mailing list Wlug(a)mail.wlug.org http://mail.wlug.org/mailman/listinfo/wlug

1 0

Minecraft server security ...
by David Glaser June 21, 2015

June 21, 2015

Folks, My grandson wants to host a minecraft server party for his boy scout troop and my daughter and I are wondering how to ensure that the existing machines on her home network are not compromised given that the members of the troop will be bringing their own machinesand ethernet switchesalthough some may be running wireless. I was wondering if you could give us some thoughts on how to set up the network. It is my understanding that the minecraft clients do need to get out to the internet to obtain a valid player name. I had thought ofsetting up a seperate Router/Lan for the party, disconnecting the existing router/lan from the wan and connecting the minecraft router/lan to the wan for the duration of the party. Any thoughts out there? -David

1 0

ls character range wildcard oddity?
by Brett Russ June 19, 2015

June 19, 2015

Can someone explain this to my evidently inadequately caffeinated brain? I was trying to use a lower case character range wildcard to list all files not starting with an uppercase letter and I noticed it wasn't working as I'd expect. So I created this simple example and still don't understand what's happening. Dir with two files: brett@spider /tmp/test $ \ls apple Berry This is what I'd expect to see: brett@spider /tmp/test $ \ls [a-b]* apple This makes no sense. Is this a bug?: *brett@spider /tmp/test $ \ls [a-c]*apple Berry* >From here on are just a few extra examples confirming the oddity of the above. brett@spider /tmp/test $ \ls [a]* apple brett@spider /tmp/test $ \ls [b]* ls: cannot access [b]*: No such file or directory brett@spider /tmp/test $ \ls [c]* ls: cannot access [c]*: No such file or directory brett@spider /tmp/test $ \ls a* apple brett@spider /tmp/test $ \ls b* ls: cannot access b*: No such file or directory brett@spider /tmp/test $ \ls c* ls: cannot access c*: No such file or directory brett@spider /tmp/test $ dpkg -S `which ls` coreutils: /bin/ls brett@spider /tmp/test $ dpkg -s coreutils Package: coreutils Essential: yes Status: install ok installed Priority: required Section: utils Installed-Size: 6020 Maintainer: Ubuntu Developers <ubuntu-devel-discuss(a)lists.ubuntu.com> Architecture: amd64 Multi-Arch: foreign Version: 8.21-1ubuntu5.1 [SNIP] Thanks, Brett

5 7

Re: [Wlug] WLUG Meeting tomorrow! Jun 11th, 2015! Native ZFS on linux!
by E Johnson June 11, 2015

June 11, 2015

Shouldn't the tagline say Please excuse my levity? But roflol, you guys. Liz J On 11 June 2015 at 17:06, Frank Sweetser <fs(a)wpi.edu> wrote: > And I was hoping to see a file system that only stored data formatted in > iambic pentameter... > ---- > Sent from my Android device with K-9 Mail. Please excuse my brevity. > > > > > See you in the future, if you're going that way. > > > > -- Keith >

1 0

WLUG Meeting tomorrow! Jun 11th, 2015! Native ZFS on linux!
by Tim Keller June 11, 2015

June 11, 2015

Hey Everybody, Sick of your limited file systems? Worried it won't scale when pentabyte disks hit the market? Good news, I've got a file system for you! I'll be doing a talk/demo of the ZFS (Zettabyte File System) naively running on Linux. This is going to be held in the campus center Rm. 129 a.k.a "Chairman's Room" at 7pm. Refreshments will be provided. Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

3 2

WLUG meeting this week
by Joel June 10, 2015

June 10, 2015

I am bummed out that home / requirements / life will keep me away from the WLUG meeting this week. Very interested in learning about ZFS details, tips and configuration for the home NAS I am currently building. Any chance post meeting you could share your ZFS slides and info either on WLUG site or via email? Thank you, Joel

2 1

WLUG Meeting Thursday June 11th, 2015 Topic: ZFS on linux! NEW LOCATION!!!
by Tim Keller June 8, 2015

June 8, 2015

The next WLUG meeting is June 11th, 2015. @ 7pm. NOTE: THE MEETING WILL BE IN THE CAMPUS CENTER RM 129 aka "Chairman's Room" I will be speaking about native ZFS on linux. I'll go into the structure of ZFS and its design principles, and how it's used in production. I'll then do a demo showing off what ZFS can do and I'll create a bunch of different FS types, etc. It should be a blast. Like usual there will be refreshments available. Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

1 0

Next Meeting June 11th, 2015: Topic: ZFS on linux
by Tim Keller June 1, 2015

June 1, 2015

Hey Everybody, Our next meeting is going to be on June 11th, 2015 @ 7:00pm. The topic is going to be "ZFS on linux". What is ZFS? ZFS is a logical volume manager (LVM), raid subsystem and a file system combined. I'll be doing a deep dive on how ZFS works on linux, it's strengths and weaknesses. Snacks and refreshments will be available. I'm working with Frank to verify the location. Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

1 0

Next Meeting Topic: ZFS on linux?
by Tim Keller May 18, 2015

May 18, 2015

Hey Gang, Would people find it interesting in doing either a ZFS centric meeting, or doing a compare/contrast Linux file system bonanza? Thanks, Tim. -- I am leery of the allegiances of any politician who refers to their constituents as "consumers".

2 1

Re: [Wlug] Great Meeting last night! Thanks Frank and Jeff!
by Jamie Guinan May 16, 2015

May 16, 2015

Agreed, great meeting. I learned several things from Frank's talk, I had no idea about the "hot plate" and temperature issues. And it was cool to see Jeff's machine in action, despite the hiccups. I should go to more meetings. #sophisticatedcat -Jamie On Fri, 15 May 2015, Tim Keller wrote: > Hey Everybody, > > Last nights meeting was great. A big hardy thanks to Jeff and Frank for > lugging in the printers and showing them off and giving us all a great > education on modelers, slicers and printing software. > > Here are links to things that were talked about: > > 3d Printers: > Kossel <http://reprap.org/wiki/Kossel> > printrbot-plus <http://printrbot.com/shop/assembled-metal-printrbot-plus/> > > Modelers: > openscad <http://www.openscad.org/> > tinkercad <https://www.tinkercad.com/> > > Slicers: > slic3r.org > > Printer Driving Software: > Octoprint <http://octoprint.org/> > > Thanks, > Tim. > > -- > I am leery of the allegiances of any politician who refers to their > constituents as "consumers". >

1 0