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help! I upgraded Xuntubu 12.10 to 14.10 Utopic Daily build BY Mistake

I accidentally added a line of source for Utopic to sources.list. And later my system can't get into GUI. While trying to fix the problem I accidentally typed in command sudo apt-get update and sudo apt-get upgrade. So tragedy happened: my system was upgraded to 14.10 utopic daily built! which I don't want! what's worse, becuase it was upgrading from 12.10 to 14.10, a lot of dependency can't resolve, and many services stopped working. The worst thing is, I still can't get into GUI. What should I do for this circurmstance? I'm a newbie in Linux/Unix. Thank you very much!!!
posted by pack2themoon on May 6, 2014 - 8 answers

Should my math student have some Unix skills?

I think my son, who is on an AP math trajectory in high school, would benefit from getting some familiarity and basic programming skills in the Unix world. I've noticed math depts in some universities include study of these skills in early years. Are there some tutorials we could use in the OS X environment to get a leg up? [more inside]
posted by Mei's lost sandal on May 5, 2014 - 17 answers

Editing data in a unix/linux pipeline by hand

I am looking for a command line tool that will let me edit data in a shell pipeline by hand before sending it out again on STDOUT. [more inside]
posted by LiteOpera on Apr 12, 2014 - 3 answers

ISP: Web Hosting Control Panel, cPanel, Plesk and OSS solutions

ISP: Web Hosting Control Panel, cPanel, Plesk and OSS solutions. Are they generally complete systems, front-end AND back-end? How are they designed technically, and is it worth using as an ISP. More inside! [more inside]
posted by lundman on Feb 13, 2014 - 2 answers

Daily digest for passive research on multiple topics...

I want to track a variety of topics passively using services on the interwebs. Google Alerts, RSS Feeds, and IFTTT are not solving the problem (or rather, I am not sufficiently solving the problem with them). Help me use available services to get to this promised land. [more inside]
posted by milqman on Oct 8, 2013 - 6 answers

How can I script changes to a few hundred files

I have a few hundred text files, all in the same directory , each of which contain a single line of text that looks like so: string OR string OR string ... OR string OR I need to add "EID(" to the beginning of each file, and replace the last "OR " with a ")" I am on a Mac and am fine with Terminal- it is how I got this far. At this point though, I am totally failing at getting the right awk or sed to make this happen. Hope me? [more inside]
posted by rockindata on Aug 15, 2013 - 6 answers

How do you kill a RHEL process that you cannot see?

How can you kill a RHEL process that does not show up in either top or ps -ef? [more inside]
posted by Rob Rockets on Jul 18, 2013 - 10 answers

Unix Search and Replace Question, of Course!

Some of my data is having some extra carriage returns that is seriously harping my style, I'd like to use UNIX commands to fix the data so it can be loaded into tables. Have used sed, not working. Details inside: [more inside]
posted by sandmanwv on May 3, 2013 - 12 answers

Archival software naming ideas needed

Could anybody suggest some name ideas for a program (UNIX command-line/cron job, not GUI) for progressively backing up/archiving files in a directory tree to archive volumes and sending them to some remote location (i.e., Amazon Glacier, or else a server reachable by ssh)? [more inside]
posted by acb on Jan 20, 2013 - 22 answers

How to solve a complex statistics problem with a script?

In this game, you roll a number of six-sided dice to get a total. The total is either the highest single die result, or the sum of any multiples rolled, whichever is higher. For example: If I roll three dice and get a 3, 4, and 6, my total is 6. But if I roll a 4, 4, and 6, my total is 8, the sum of the two 4s. What I want to find out is the mean, median, mode, and standard deviation of the possible totals given N dice. How might I create a simple script to compute this? [more inside]
posted by j0hnpaul on Nov 30, 2012 - 24 answers

My processes, they are

I've been learning a (very) little bit about Unix and AIX while doing some maintenance on our company's ERP server. I've been finding a lot of defunct processes. I have a few very n00b questions. [more inside]
posted by slogger on Nov 27, 2012 - 8 answers

Find a list of files on OSX

OSX: script to find all files matching a list of filenames and report their location? [more inside]
posted by odinsdream on Aug 9, 2012 - 17 answers

No tengo sed?

Trying to find-and-replace text within a file, using the Terminal on Mac OS X 10.7.4. Can't for the life of me get it to work. Please help. [more inside]
posted by dondiego87 on May 29, 2012 - 6 answers

Hardcore methods for e-mail blocking

Looking for elite e-mail blacklist tricks to block a stalker. [more inside]
posted by steinsaltz on Apr 25, 2012 - 16 answers

I want to suck my files!

Unix cURL syntax: multiple URLs to multiple files (download) [more inside]
posted by cjorgensen on Apr 14, 2012 - 8 answers

Looking for a community/forum where I can learn more about networking, code, security, and OS-independent CS topics

I'm looking for a forum where I can ask questions about networking, security, coding, operating systems, web design, etc. There are many of these out there, but I'd like to find a single community which covers all these topics more or less equally (so it isn't a Linux forum with a small section on BSD, or a coding forum with a small section on networking). I'd like it to be the sort of forum where users stay around for several years as they learn and contribute at different levels, with high literacy and education-to-spam levels. Could I have your recommendations please?
posted by westerly on Dec 18, 2011 - 9 answers

Centrally manage FreeNAS permissions?

Is it possible to centrally control permissions on a FreeNAS or other UNIX-like filesystem? [more inside]
posted by odinsdream on Nov 28, 2011 - 14 answers

Burping the routers at work.

I am at work, at a college, and there seem to be wifi hiccups throughout the day, moments where the connectivity is briefly lost. How can I log these interruptions so I can convince our technicians that there is a problem? [more inside]
posted by mecran01 on Nov 25, 2011 - 13 answers

ls output scrolling off the screen

Unix shell ls command: the output scrolls off the screen a lot of the time, so I find myself doing ls | less. There's probably an easier way to get ls to pause and wait at the end of every screenful of output. Could you tell me what it is? Sorry if this is a dumb question.
posted by Paquda on Nov 11, 2011 - 16 answers

Nothing's quite as enraging as not being able to find a simple solution to a simple problem.

Unix wizards: How the heck can I sequentially rename a bunch of files to 001, 002, etc., without using a shell script? [more inside]
posted by neckro23 on Nov 2, 2011 - 15 answers

xterm / bash weirdness?

Weird Unix terminal issue where yer trying to up arrow through bash history and it looks messed up, right? [more inside]
posted by xmutex on Sep 21, 2011 - 11 answers

How to write an SQL query in unix?

I'd like to perform an SQL query with outer joins, from text files on my PC, using only a unix emulator. Is this possible on my PC? How would I write and execute it? [more inside]
posted by RobinFiveWords on Sep 13, 2011 - 16 answers

Unix vs. Apple OS?

CompSciFilter: Someone kindly explain to me what differentiates Unix and Apple OS. [more inside]
posted by lobbyist on Aug 29, 2011 - 29 answers

I'd like to be a power user, not luser in OSX-land

I'm a Windows systems administrator and power user and an enthusiastic user of Unix/Linux-based operating systems. I have hand edited make files and recompiled linux kernels manually. I know how to do administrative scripting and am a Microsoft products (SharePoint, if it matters) support professional/systems engineer in my job. I am certainly not the geekiest person I know but I'm in the top 5 percent. I am switching to a Mac Mini (Lion Server, specs maxed toward storage) after decades of using Windows laptops/desktops and some Linux machines. I'm prepared for the lack of physical mobility, but I don't feel prepared for not being a power user. What methods/resources would you suggest I could use to get up to speed with being a Mac Mini and OSX Lion power user? [more inside]
posted by kalessin on Jul 29, 2011 - 18 answers

Why use Ubuntu?

Tell me why I should use Ubuntu. [more inside]
posted by StephenF on Apr 6, 2011 - 29 answers

Need terminal syntax for scheduling a unix program

Need help scheduling a unix task under Mac OS. Probably an easy question for those who understand such things. [more inside]
posted by Alaska Jack on Mar 23, 2011 - 16 answers

Gigabyte Doubling Trouble

The case of the missing Mac HD space, and symlink shenanigans. [more inside]
posted by brightghost on Feb 11, 2011 - 15 answers

help me bend Mailman to my will!

How do I enable people on a Mailman list to send common (MS Office, PDF, etc) attachments in their email to others on the list? [more inside]
posted by canine epigram on Feb 10, 2011 - 1 answer

What hourly rate for a 10+ year UNIX (Linux) admin in Bay Area?

What hourly rate for a 10+ year UNIX (Linux) admin in Bay Area? This is for maybe 2-3 visits a month, each 3-4 hours in duration. [more inside]
posted by uhom on Feb 9, 2011 - 6 answers

Temporarily leaving the elegance and convenience of emacs for the awkward mess that is Visual Studio

Non-beginner programmer with a unix background looking to pick up C# - What do I read? [more inside]
posted by Dr Dracator on Nov 3, 2010 - 11 answers

How to clone a Sun V440 server with RAID?

I am trying to clone a Sun V440 server that is using the built-in raid (not disksuite). When I move the seed drive from the original server to the new server, the raidctl program complains that the drive is already part of another raid set (which it is), but I'd like to use it anyways as a seed for the new server. Any tips?
posted by zimage on Sep 13, 2010 - 6 answers

Getting a part-time programming job without a degree...

How do you go about when you look for a part-time entry-level software developer job? [more inside]
posted by RaDeuX on Aug 31, 2010 - 11 answers

Finder Blues

Using Finder is murdering my mind. What's the most efficient way to move/delete/rename files, view sort by metadata? On a Mac. Getting good with unix commands? Some sort of Vim file management system cobbled together with plugins?
posted by parallax7d on Aug 31, 2010 - 11 answers

Looking for Unix sysadmin training alternatives to USENIX/LISA in the U.S.

Where can my colleague go in the U.S. for up to a week of sysadmin training and mingling? [more inside]
posted by wenestvedt on Aug 12, 2010 - 4 answers

Help Me Automatically Shorten Status Updates for Facebook/Twitter Updates ...

I'm seeking to write a shell script (probably using sed) that will be given some text and will abbreviate it for me. I've no need to reinvent the wheel, if such a shell script already exists. More inside. [more inside]
posted by WCityMike on Jul 26, 2010 - 6 answers

Best tiny unix for serving Java servlets?

Recommendations for a tiny Unix distro for serving servlets and nothing else. [more inside]
posted by bonaldi on Jun 1, 2010 - 9 answers

How do I measure how many kilobytes of memory for a fast UNIX program?

UNIX. There's /usr/bin/time to measure how much time a unix command needs to finish. What's the equivalent for spitting out how much memory a unix command needed to allocate to finish it's work? [more inside]
posted by Mozai on Apr 22, 2010 - 5 answers

Bringing back a Mac ssh that’s been deleted?

The /usr/bin/ssh program on my work Mac got deleted. Without the install disc, how do I download and install a replacement so I can do shell stuff again?
posted by thelastenglishmajor on Apr 19, 2010 - 11 answers

Mysterious keyboard behavior: accidental or malicious?

My MacBook's keyboard mysteriously changed to Dvorak! How can I tell if someone messed with my computer? [more inside]
posted by k. on Mar 19, 2010 - 8 answers

Possibly the most specific -filter in recent memory

GUIDPartitionTableFilter: How can I non-destructively change a partition's filesystem type ID in OS X? [more inside]
posted by The Lurkers Support Me in Email on Dec 14, 2009 - 6 answers

OS X: How to track down and kill a cron job. Or something.

OS X Unix filter: Please help me find and delete an obsolete cron job on an iMac running Leopard. [more inside]
posted by al_fresco on Nov 14, 2009 - 13 answers

Unix web apps

A two parter: 1. I remember reading a quote by someone along the lines of 'every new 'killer web app' is a unix app. google=grep; facebook=wall; etc. Can you help me find this please? 2. Now that you grok the idea, can you tell me more analogs of unix vs web apps? Which unix apps are yet to be made webby? Which have been, but badly implemented? Which are your favorite unix apps? Etc.
posted by yegga on Nov 10, 2009 - 20 answers

Quality Command Line Graphing?

Open source, command line, low "impact", png-producing, full-featured, good-looking graphing on Linux and other Unices? [more inside]
posted by DU on Sep 29, 2009 - 13 answers

How to centralize adminsitration of multiple Unix machines (and others)?

I'm curious as to what are the current "best practices" when it comes to centralized administration of a network of Unix (primarily Linux, but not necessarily so) machines? Essentially, what is the equivalent of Active Directory for a network with one or more Unix hosts? The immediate answer I come up with would be something like OpenLDAP plus PAM but what I'm looking for is the suite of tools (GUI and CLI apps) for managing the directory, deploying software, centralizing sign-on and security, managing printers, etc. In a perfect world, I would like to centralize administration of Windows, Unix, and OS X machines via a single directory service, though I imagine such a solution would be expensive and/or cumbersome if it even existed. Or is this something Samba 4 will do?
posted by Imhotep is Invisible on Sep 9, 2009 - 5 answers

Color laser printer with Linux/UNIX drivers available

Could anyone recommend a color laser printer for ca. 500 GBP for a small office? Compatibility with Linux and Solaris---essential. BONUS question: should I also buy a monochrome laser for B&W printouts or is an unnecessary overkill when one has a color laser?
posted by noztran on Aug 31, 2009 - 3 answers

Case-Insensitive LS on Mac OS X?

Unix mavens: is there a way for ls on a Mac OS X install to alphabetize its listing case-insensitively, while still preserving any other ls flags you may be using? If not, does another ls variant offered by anybody offer case-insensitivity, and if so, how can I supplant one with the other, without risk of any harm to anything else on my system? (If it matters, my shell of choice is tcsh.)
posted by WCityMike on Aug 16, 2009 - 19 answers

Attending a Seminar 101

I need to pick a seminar/conference/class/training/whatever for work to attend within the next 6 months or so, I have until 10PM to choose, and I have no idea where or what the cool stuff is. It should be at least tangentially related to my job as a Unix Systems Engineer/Python Guy, and preferably within the Northeast (NYC is where I'm located), although feel free to recommend anywhere in the US. [more inside]
posted by Mach5 on Aug 7, 2009 - 3 answers

Shell script handling CSV columns

I'm using a shell script to handle some excel docs by converting to csv and reformatting it a little bit. I'm having some difficulty going on with the next part of the script. Some help would be great. :) [more inside]
posted by fightoplankton on Jun 10, 2009 - 11 answers

What log file would show when a Mac OSX user was renamed?

on Mac OSX Leopard(10.5.7), which log file, archived or not, would I find when a user account was renamed? [more inside]
posted by neilkod on Jun 4, 2009 - 6 answers

How to test if a variable in a Bourne shell script is an integer?

I'm being tasked with creating a simple integer calculator, which I have effectively done, up to the point of it being a calculator, however, even after hours of searching I cannot get any scripts to work correctly. [more inside]
posted by InsaneRhino on Apr 30, 2009 - 11 answers

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