Roundtable July 2004

roundtable@muug.ca

12 participants
11 discussions

SyQuest SyJet1se
by millward 31 Jul '04

31 Jul '04

I've recently aquired an old SyQuest SyJet1se 1.5 G external drive with no cartridge. I suspect the drive might work. Does anyone in the city sell these cartridges anymore, or is this drive dumpster filling?

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/dev/shm
by Mike Pfaiffer 21 Jul '04

21 Jul '04

What is /dec/shm? Is is kind of a RAM drive? I have had an entry in my df listing and /etc/fstab for it for quite a while. I was just wondering what it was... Later Mike -- +----------------------------------------------------------------------+ | Digital Civilization magazine: http://www.digitalcivilization.ca | |Call-A.P.P.L.E. and the Digital Civilization http://www.callapple.org | | http://members.shaw.ca/pfaiffer = Mike Pfaiffer (B.A., B.Sc.) | +----------------------------------------------------------------------+ ----- BEGIN GEEK CODE BLOCK ----- Version: 3.12 GCS/G/IT/PA/SS d s+:- a? C++ UL L++ W++ N++ o+ K- w(---) O+@ M++@ V PS+ PE !PGP t+ 5+ X R tv b+ DI+++ D++ G e++* h! r-- !y-- UF++ ------ END GEEK CODE BLOCK ------

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Maximum file size?
by John Lange 19 Jul '04

19 Jul '04

I'm running ext3 under linux 2.6.x. By default, what is the maximum file size? Where is this adjusted? I can't find it in the kernel config so is it a /proc setting? Thanks, -- John Lange

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CSV files
by John Lange 13 Jul '04

13 Jul '04

This really isn't a Unix question directly so I apologize for that. However, I have a feeling that others here might have done something like this. I have a client who would like their data converted from Access to mySQL. I'm using PHP to do the import because it plays so nice with mySQL and I'm making some changes to the data while it is being imported. So far so good, we are 90% there. The problem is, Access does not export to a valid CSV format. Specifically, if there are any text or memo fields in Access that happen to contain CR/LF Access does not strip them or escape them in any way. The results in a CSV file with end of line markers in the middle of data fields. At this point nothing I've found will import these files. Excel, OpenOffice, even Access itself all treat the CR/LF as an end of record marker even if it is enclosed in quotes. I'm not doing the data exporting from Access and I'm not that familiar with Access. Is there an option to strip CR/LF during export? Any other suggestions on how to clean this data? Thanks -- John Lange

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Articles needed
by Mike Pfaiffer 12 Jul '04

12 Jul '04

Looks like we are having troubles in Japan. This means I'll be putting the magazine together for the next little while. If anybody wants to write an article or three we could certainly use the help. As I said in the meetings we can't pay for them (we don't make enough from subscriptions and sales for that). However, if we get some articles I can make a couple hand labeled copies of the CD available as door prizes in September. A fair trade? We are willing to accept articles on anything computer related as long as it will not get us in trouble and is not directly Windows related (as long as other examples are included there shouldn't be much of a problem). Source code is OK too as long as it is yours and you discuss what it does - perhaps in the context of how to write a program. I'm a bit more easy going compared to our regular editor. ;-) Anyhow... The deadline for the September issue is the 28'th of July. We were planning on eventually releasing a hardcopy issue, so we have a months lead time... In the mean time there are previews (my stuff) for the January to August issues on the Digital Civilization web site for free. I'll be putting the issues I work on up there as well. E-mail any submissions to me and we'll see what can be done from there. Later Mike P.S. Free art work is OK too as long as you did it. -- +----------------------------------------------------------------------+ | Digital Civilization magazine: http://www.digitalcivilization.ca | |Call-A.P.P.L.E. and the Digital Civilization http://www.callapple.org | | http://members.shaw.ca/pfaiffer = Mike Pfaiffer (B.A., B.Sc.) | +----------------------------------------------------------------------+ ----- BEGIN GEEK CODE BLOCK ----- Version: 3.12 GCS/G/IT/PA/SS d s+:- a? C++ UL L++ W++ N++ o+ K- w(---) O+@ M++@ V PS+ PE !PGP t+ 5+ X R tv b+ DI+++ D++ G e++* h! r-- !y-- UF++ ------ END GEEK CODE BLOCK ------

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Re: [RndTbl] rm -r crippled in Red Hat 8
by gedetil＠cs.umanitoba.ca 12 Jul '04

12 Jul '04

According to millward: > In /root/.bashrc I prefixed '#' thus: > #alias rm='rm -i' > Now it's just fine. I can do rm - r > and wipe out my entire system! Which is exactly why the define the above alias for the root account. I'd strongly advise against removing or commenting out that alias, unless you're very careful in using the "rm" command, or like reinstalling your system when you do run into problems. ;) As another member pointed out, you can use the "-f" option to force the removal, which overrides the prompting that gets enabled by the "-i" option. At least this way, you'll hopefully think about it more before you use it, and might be less likely to accidentally wipe out something you didn't want to. (Of course, if you start using the "-rf" options out of habit, it kind of becomes a moot point.) By the way, this isn't something unique to Red Hat 8, nor to more recent versions. Those aliases (on "cp" and "mv" as well) have been there on previous Red Hat versions as far back as I can remember). -- Gilbert E. Detillieux E-mail: <gedetil(a)cs.umanitoba.ca> Dept. of Computer Science Web: http://www.cs.umanitoba.ca/~gedetil/ University of Manitoba Phone: (204)474-8161 Winnipeg, MB, CANADA R3T 2N2 Fax: (204)474-7609

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rm -r crippled in Red Hat 8
by millward 12 Jul '04

12 Jul '04

In /root/.bashrc I prefixed '#' thus: #alias rm='rm -i' Now it's just fine. I can do rm - r and wipe out my entire system! I should have figured this out myself, but I was distracted by /etc/bashrc. It's a lot more complex then /root/.bashrc Anyway, the problem forced me to learn that Natualis can be useful. Thanks to you all for the help!

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rm -r crippled in Red Hat 8
by millward 11 Jul '04

11 Jul '04

To my surprise, rm -r does not work in Red Hat 8. I tried to rub out a directory full of files and sub-directories and Red Hat asked for confirmation of deletion for each and every file! I had to hit "y" 30 times just to delete the files in one sub-directory alone. This is disgusting. How do I get rm * and rm -r to work properly in Red Hat 8 ?

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Re: Roundtable digest, Vol 1 #310 - 3 msgs
by Brock Wolfe 11 Jul '04

11 Jul '04

On Sat, 10 Jul 2004 12:01:05 -0500, roundtable-request(a)muug.mb.ca wrote: >Send Roundtable mailing list submissions to > roundtable(a)muug.mb.ca > >To subscribe or unsubscribe via the World Wide Web, visit > http://www.muug.mb.ca/mailman/listinfo/roundtable >or, via email, send a message with subject or body 'help' to > roundtable-request(a)muug.mb.ca > >You can reach the person managing the list at > roundtable-admin(a)muug.mb.ca > >When replying, please edit your Subject line so it is more specific >than "Re: Contents of Roundtable digest..." > > >Today's Topics: > > 1. Rackmount Servers (Brock Wolfe) > 2. Re: Rackmount Servers (John Schulz) > 3. Re: Rackmount Servers (Shawn Wallbridge) > =========================================== Thanks to all for the rackmount server comments. For the Chenbro rackmount servers, what motherboards were used? Brock Brock Wolfe ______________________________________ Expect problems and eat them for breakfast. -- Alfred A. Montapert (American Author) ______________________________________

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Rackmount Servers
by Brock Wolfe 09 Jul '04

09 Jul '04

I am looking at overhauling my network and considering moving to rackmount systems to save some space. Applications run from router/firewall to Application and NAS servers. A quick search shows www.TigerDirect.ca carries Cybertron, Vision, Systemax brands, plus there are numerous "Linux/BSD" brands available from the US. I would like to buy in Canada, and have access to spare parts & accessories without FedEx'ng all the way from Southern California.<g> Any suggestions/experince in off-the-shelf rackmounts running "Fedora Core 2" or FreeBSD/OpenBSD? Thanks in advance for your comments/suggestions. Brock

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Roundtable July 2004