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• How to calculate running totals of subsets of data in a table

  - by John

  I have 4 columns: Name, Week, Batch and Units Produced (Cols, A,B,C,D). In column E, I need to keep running totals based on name and week. When the week changes for the same person, restart the total. Fred, 12, 4001, 129.0 Answer in e: 129.0 Fred, 12, 4012, 234.0 Answer in e: 363.0 Fred, 13, 4023, 12.0 Answer in e: 12.0 John, 12, 4003, 420.0 Answer in e: 420.0 John, 13, 4021, 1200.0 Answer in e: 1200.0 John, 13, 4029, 120.0 Answer in e: 1320.0 I need to be able to copy the formula to over 1000 rows.

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• rsync server, uploaded files permissions incorrect

  - by fred basset

  I'm trying to setup an rsync server on my Ubuntu machine. Transfer from a local PC to the server via rsync does work, but the resultant uploaded files have no r,w or x bits set, e.g. ---------- 1 fredb fredb 0 Aug 30 20:50 sk_upgrade_20120830_033450.txt ---------- 1 fredb fredb 0 Aug 30 20:50 sk_user_20120827_184534.txt ---------- 1 fredb fredb 0 Aug 30 20:50 sk_user_20120830_033450.txt My rsyncd.conf file is: motd file = /etc/rsyncd.motd [workspace] path = /tmp comment = rsync server uid = nobody gid = nobody read only = false auth users = fredb secrets file = /etc/rsyncd.scrt How can I get the target files permissions correct? Also once I've solved this problem how can I transfer without a password? TY, Fred

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• Attempting to extract a pattern within a string

  - by Brian

  I'm attempting to extract a given pattern within a text file, however, the results are not 100% what I want. Here's my code: import java.util.regex.Matcher; import java.util.regex.Pattern; public class ParseText1 { public static void main(String[] args) { String content = "<p>Yada yada yada <code> foo ddd</code>yada yada ...\n" + "more here <2004-08-24> bar<Bob Joe> etc etc\n" + "more here again <2004-09-24> bar<Bob Joe> <Fred Kej> etc etc\n" + "more here again <2004-08-24> bar<Bob Joe><Fred Kej> etc etc\n" + "and still more <2004-08-21><2004-08-21> baz <John Doe> and now <code>the end</code> </p>\n"; Pattern p = Pattern .compile("<[1234567890]{4}-[1234567890]{2}-[1234567890]{2}>.*?<[^%0-9/]*>", Pattern.MULTILINE); Matcher m = p.matcher(content); // print all the matches that we find while (m.find()) { System.out.println(m.group()); } } } The output I'm getting is: <2004-08-24> bar<Bob Joe> <2004-09-24> bar<Bob Joe> <Fred Kej> <2004-08-24> bar<Bob Joe><Fred Kej> <2004-08-21><2004-08-21> baz <John Doe> and now <code> The output I want is: <2004-08-24> bar<Bob Joe> <2004-08-24> bar<Bob Joe> <2004-08-24> bar<Bob Joe> <2004-08-21> baz <John Doe> In short, the sequence of "date", "text (or blank)", and "name" must be extracted. Everything else should be avoided. For example the tag "Fred Kej" did not have any "date" tag before it, therefore, it should be flagged as invalid. Also, as a side question, is there a way to store or track the text snippets that were skipped/rejected as were the valid texts. Thanks, Brian

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• How to stay motivated on the job?

  - by Fred Basset

  Hi All, I've been working as an engineer professionally for 15 years for a number of different companies. My question is how do you stay motivated at work? I can generally be easily motivated if I'm working on design, but that seems to be about 5% of my actual work hours. Most of my work seems to end up being fixing problems in existing poorly designed projects. I'd love to hear some feedback from the other members out there. Thank you, Fred

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• Joomla poll not working with IE

  - by Fred

  On my joomla wensite the joomla poll extension (down,right) or any other joomla poll only works in Firefox,Safari and all the other browser but not in IE8 or lower versions. I need a poll on my site and 95% of my site visiters use IE8, its fustrating. How can i get any joomla poll to work in IE8 ? Its strange but IE8 displays the poll good,like Firefox, but you can't vote with it ? Is there anyone who can help ? Fred

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• Why Does Private Access Remain Non-Private in .NET Within a Class?

  - by AMissico

  While cleaning some code today written by someone else, I changed the access modifier from Public to Private on a class variable/member/field. I expected a long list of compiler errors that I use to "refactor/rework/review" the code that used this variable. Imagine my surprise when I didn't get any errors. After reviewing, it turns out that another instance of the Class can access the private members of another instance declared within the Class. Totally unexcepted. Is this normal? I been coding in .NET since the beginning and never ran into this issue, nor read about it. I may have stumbled onto it before, but only "vaguely noticed" and move on. Can anyone explain this behavoir to me? Am I doing something wrong? I found this behavior in both C# and VB.NET. The code seems to take advantage of the ability to access private variables. Sincerely, Totally Confused Class Foo Private _int As Integer Private _foo As Foo Private _jack As Jack Private _fred As Fred Public Sub SetPrivate() _foo = New Foo _foo._int = 3 'TOTALLY UNEXPECTED _jack = New Jack '_jack._int = 3 'expected compile error because Foo doesn't know Jack _fred = New Fred '_fred._int = 3 'expected compile error because Fred hides from Foo End Sub Private Class Fred Private _int As Integer End Class End Class Class Jack Private _int As Integer End Class

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• Rename files and directories using substitution and variables

  - by rednectar

  I have found several similar questions that have solutions, except they don't involve variables. I have a particular pattern in a tree of files and directories - the pattern is the word TEMPLATE. I want a script file to rename all of the files and directories by replacing the word TEMPLATE with some other name that is contained in the variable ${newName} If I knew that the value of ${newName} was say "Fred lives here", then the command find . -name '*TEMPLATE*' -exec bash -c 'mv "$0" "${0/TEMPLATE/Fred lives here}"' {} \; will do the job However, if my script is: newName="Fred lives here" find . -name '*TEMPLATE*' -exec bash -c 'mv "$0" "${0/TEMPLATE/${newName}}"' {} \; then the word TEMPLATE is replaced by null rather than "Fred lives here" I need the "" around $0 because there are spaces in the path name, so I can't do something like: find . -name '*TEMPLATE*' -exec bash -c 'mv "$0" "${0/TEMPLATE/"${newName}"}"' {} \; Can anyone help me get this script to work so that all files and directories that contain the word TEMPLATE have TEMPLATE replaced by whatever the value of ${newName} is eg, if newName="A different name" and a I had directory of /foo/bar/some TEMPLATE directory/with files then the directory would be renamed to /foo/bar/some A different name directory/with files and a file called some TEMPLATE file would be renamed to some A different name file

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• How can I spot subtle Lisp syntax mistakes?

  - by Marius Andersen

  I'm a newbie playing around with Lisp (actually, Emacs Lisp). It's a lot of fun, except when I seem to run into the same syntax mistakes again and again. For instance, here's something I've encountered several times. I have some cond form, like (cond ((foo bar) (qux quux)) ((or corge (grault warg)) (fred) (t xyzzy))) and the default clause, which returns xyzzy, is never carried out, because it's actually nested inside the previous clause: (cond ((foo bar) (qux quux)) ((or corge (grault warg)) (fred)) (t xyzzy)) It's difficult for me to see such errors when the difference in indentation is only one space. Does this get easier with time? I also have problems when there's a large distance between the (mal-)indented line and the line it should be indented against. let forms with a lot of complex bindings, for example, or an unless form with a long conditional: (defun test () (unless (foo bar (qux quux) (or corge (grault warg) (fred)))) xyzzy) It turns out xyzzy was never inside the unless form at all: (defun test () (unless (foo bar (qux quux) (or corge (grault warg) (fred))) xyzzy)) I auto-indent habitually and use parenthesis highlighting to avoid counting parentheses. For the most part it works like a breeze, but occasionally, I discover my syntax mistakes only by debugging. What can I do?

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• UDF call in entity framework is cached

  - by Fred Yang

  I am doing a test after reading an article http://blogs.msdn.com/alexj/archive/2009/08/07/tip-30-how-to-use-a-custom-store-function.aspx about udf function called. When I use a function with objectContext.Entities.Where( t= udf(para1, para2) == 1), here the Entities is not ObjectQuery, but an ObjectSet, the first time I call the method, it runs correctly, if I reuse the objectContext,and run it again but with different para1, para2, then the previous parameter values still cached, and the result is same as previous one, which is wrong. The sql profiler shows that both query hit the database, but the t-sql is the same. Am I missing something? And the ObjectSet does not support .where(esql_string). How to get udf working with ObjectSet? Thanks Fred

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• Python sys.argv lists and indexes

  - by Fred Gerbig

  In the below code I understand that sys.argv uses lists, however I am not clear on how the index's are used here. def main(): if len(sys.argv) >= 2: name = sys.argv[1] else: name = 'World' print 'Hello', name if __name__ == '__main__': main() If I change name = sys.argv[1] to name = sys.argv[0] and type something for an argument it returns: Hello C:\Documents and Settings\fred\My Documents\Downloads\google-python-exercises \google-python-exercises\hello.py Which kind of make sense. Can someone explain how the 2 is used here: if len(sys.argv) >= 2: And how the 1 is used here: name = sys.argv[1]

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• How to have multiple tables with multiple joins

  - by williamsdb

  I have three tables that I need to join together and get a combination of results. I have tried using left/right joins but they don't give the desired results. For example: Table 1 - STAFF id name 1 John 2 Fred Table 2 - STAFFMOBILERIGHTS id staffid mobilerightsid rights --this table is empty-- Table 3 - MOBILERIGHTS id rightname 1 Login 2 View and what I need is this as the result... id name id staffid mobilerightsid rights id rightname 1 John null null null null 1 login 1 John null null null null 2 View 2 Fred null null null null 1 login 2 Fred null null null null 2 View I have tried the following : SELECT * FROM STAFFMOBILERIGHTS SMR RIGHT JOIN STAFF STA ON STA.STAFFID = SMR.STAFFID RIGHT JOIN MOBILERIGHTS MRI ON MRI.ID = SMR.MOBILERIGHTSID But this only returns two rows as follows: id name id staffid mobilerightsid rights id rightname null null null null null null 1 login null null null null null null 2 View Can what I am trying to achieve be done and if so how? Thanks

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• How do I program a hyperlink to include a username and password to the target site?

  - by Fred Griffith

  We have a website with a section restricted to members only. They log in and can view the website. Some of the information is stored on another server. We want that information to ONLY be accessible to those who have logged into the main website. What would be the best way to link the two sites, without making members log in again? Seems like there must be some way to send an encrypted username and password along with the URL in the hyperlink. Any ideas? Thank you in advance. Fred G.

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• Best neural network for certain type of pattern analysis?

  - by fred basset

  Hi All, I'm working on a system that will send telemetry data on machine operation back to a central server for analysis. One of the machine parameters we're measuring is motor current drawn vs time. After an operation is finished we plan to send back an array of currents vs time to the server. A successful operation would have a pattern like a trapezoid, problematic operations would have a pattern completely different, more like a large spike in values. Can anyone recommend a type of neural network that would be good at classifying these 1D vectors of current values into a pass/fail type output? Thanks, Fred

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• trying to understand some codes related to window.onload in js

  - by user2507818

  <body> <script language="javascript"> window.tdiff = []; fred = function(a,b){return a-b;}; window.onload = function(e){ console.log("window.onload", e, Date.now() ,window.tdiff, (window.tdiff[1] = Date.now()) && window.tdiff.reduce(fred) ); } </script> </body> Above code is taken from a site. In firefox-console, it shows: window.onload load 1372646227664 [undefined, 1372646227664] 1372646227664 Question: For window.tdiff->[undefined, 1372646227664], why not:[], because when runs to code:window.tdiff, it is still an empty array? For window.tdiff.reduce(fred)->1372646227664, window.tdiff = [undefined, 1372646227664], undefined - 1372646227664, should be NaN, why it shows 1372646227664?

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• In 'apt-cache depends' output, what is the meaning of Suggests, Recommends, |, <>?

  - by fred.bear

  I've checked the man/info page, but there is no reference to some aspects of the output fomat of apt-cache depends The man/info page tried to be helpful (in an obtuse manner); quote: "For the specific meaning of the remainder of the output it is best to consult the apt source code" Now in fairness to the info page, that quote was in regards to the 'showpkg' option which it had reasonably explained, but my option had no such explanation... I understand that Linux info comes from many sources (not just man/info pages), and I don't particularly want to rummage through the source (altough somtimes I do), so here is an example of what I'd like to know the meaning of. # I can assume what these mean, but... # What does | mean? (probably means 'or'???) # What does <pkg> and the following indentations mean? # At the end, the interaction(?) of Suggest and Recommends puzzles me. $ apt-cache depends solr-common solr-common Depends: debconf |Depends: openjdk-6-jre-headless |Depends: <java5-runtime-headless> default-jre-headless gcj-4.4-jre-headless gcj-jre-headless gij-4.3 openjdk-6-jre-headless Depends: <java6-runtime-headless> default-jre-headless openjdk-6-jre-headless Depends: libcommons-codec-java Depends: libcommons-csv-java Depends: libcommons-fileupload-java Depends: libcommons-httpclient-java Depends: libcommons-io-java Depends: libjaxp1.3-java Depends: libjetty-java Depends: liblucene2-java Depends: libservlet2.5-java Depends: libslf4j-java Depends: libxml-commons-external-java Suggests: libmysql-java |Recommends: solr-tomcat Recommends: solr-jetty

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• Are there any "traps" in cloning a VirtualBox VM for concurrent use on the same Host/LAN?

  - by fred.bear

  With Ubuntu as the Host, I want to run two similar/identical(?) instances of a VirtualBox Guest on the same Host, or perhaps on another Host which is on the same LAN... I have set up a Guest as a "base" for the two clones. I have exported it as an ovf appliance. I've imported this "base" guest OS back into VirtualBox, with a unique name and .vdk ... and I have started them both on the same Host, and all seems okay, but I do wonder if I have missed some significant point. ...eg. Is the virtual NIC the same? this would throw the LAN into confusion (I think)... and what about UUIDs? I haven't actually tried 2 clones together, yet... only the original and one clone, but I haven't gone beyond a simple startup ...

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• Where can I find a good tutorial to replicate Game Maker's surfaces and blend modes in XNA?

  - by Fred Dufresne

  I know Game Maker's surfaces exist in XNA (It's more the othe way around, XNA's surfaces exist in Game Maker), same thing for blend modes, since (I think) they both use DirectX. This is the question: "Where can I find a good tutorial to replicate Game Maker's surfaces and blend modes in XNA?" I'm using XNA 4.0 and Game Maker 8.1 Pro. Background I'm slowly moving from Game Maker to... Something else. I've learned some good C++ but DirectX is hardcore and OpenGL needs some pretty good understanding of the language to be able to use it correctly. XNA and C# together seemed like a good middle but the documentation is hard to understand for a newb like me. In the end, I chose to focus on XNA.

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• How do the environments of a standard Terminal command-line and a bash script differ?

  - by fred.bear

  I know there is something different about the environment of the Terminal command-line and the environment in a bash script, but I don't know what that difference is... Here is the example which finally led me to ask this quesiton; it may flush out some of the differences. I am trying to strip leading '0's from a number, with this command. var="000123"; var="${var##+(0)}" ; echo $var When I run this command from the Terminal's command-line, I get: 123 However, when I run it from within a script, it doesn't work; I get: 000123 I'm using Ubuntu 10.04, and tried all the following with the sam results: GNOME Terminal 2.30.2 Konsole 2.4.5 #!/bin/bash #!/bin/sh What is causing this difference? Even if some upgrade will make it work in scripts... I am trying to find out the what and why, so in future, I'll know what to look out for .

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• Should I work on CSS or apps first?

  - by Fred

  I am working on my own website for my business, and I need to contract out some assistance. For example, I have the site looking pretty good on Firefox, but it needs help on other browsers. I also need some help with adding some Django apps to the site and setting up a database. I plan to seek the help of two different individuals via elance or odesk. My question is which to do first - get the css and html right then do the apps, or get the apps done and then work on the css and html? Thanks in advance for any suggestions.

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• Is there a IRC Client which can use or emulate mIRC scripts

  - by fred.bear

  I've used mIRC (Windows) for years, and have some custom scripts, written in mIRC's own scripting language. Is there an Ubuntu/Linux IRC Client which will allow me to use my scripts as-is? Failing that, is there a "functions a lot like mIRC" Client available? I've just tried Pidgin's IRC client, but it seems to be quite basic. I couldn't see any way for it to tap into channel activity via scripts. I don't want to use Wine... WineHQ reports it as having too many bugs for my liking, and anyhow, I try to avoid using Wine like I do Windows :)

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• What causes Nautilus to restart whenever I kill it?

  - by fred.bear

  In htop, I kill Nautilus, and within one second, it's back, with a new PID! The restarted Nautilus shows in the Processes list, but has no GUI until I manually launch Nautilus... I've heard mention of Nautilus works in lockstep with the desktop... maybe that is the reason(?). Is there some sort of "watchdog" program keeping an eye on some distro-critical programs? Monitoring Nautilus doesn't seem like a Linux kernel issue, so I just wonder what is happening here?

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• Is the difference between sudo and gksu the same as the difference between sudo -i and sudo -s?

  - by fred.bear

  Is the difference between sudo cmd and gksu cmd, the same as the difference between starting a shell with sudo -i and sudo -s? ... or put another way, Is sudo cmd the same as sudo -i cmd and gksu cmd the same as sudo -s cmd? EDIT: Based on what I read on an Ubuntu Documentation Page where it says: You should never use normal sudo to start graphical applications as root. You should use gksudo (kdesudo on Kubuntu) to run such programs. gksudo sets HOME=~root, and copies .Xauthority to a tmp directory. This prevents files in your home directory becoming owned by root. (AFAICT, this is all that's special about the environment of the started process with gksudo vs. sudo). The "AFAICT" doen't really give me full confidence that there is nothing more to it. (..a belated UPDATE: I tested his commemnt today (2 months later) about: "This prevents files in your home directory becoming owned by root." All files I created via sudo/gksu were all owned by "root", and the group was "root".) I've read parts of the info sudo and noticed the -i and -s seem to be doing the same thing as the AFAICT environment issue... but I hit overload.. so I've asked my question here. PS.. My question is not about sudo vs gksu .. It is more about: Is gksu the same as sudo -s .. and if not, how do they differ?

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• IBus client for GNU Emacs: Installed, but how do I start it?

  - by fred.bear

  Having recently moved to Linux/Ubuntu, I'm looking for a good editor, and GNU Emacs seems to fit the bill. One thing I want from a text editor is the ability to handle Unicode Input Method Editors in a "normal way", across the board. For Ubuntu, the "normal way" is via IBus. However, emacs does not support IBus "off the shelf". I found a launchpad project: IBus client for GNU Emacs: ibus-el. I've installed ibus-el and set it up as per the Customize section of this emacswiki IBusMode page. I included the suggested "toggle" keybinding: ;; Use s-SPC to toggle input status It seems to have installed okay, but I have no idea how to invoke IBus and switch IMEs. s-SPC doesn't fire up the IBus language panel... I'm stuck :( ...so close, yet so far.... Here are the startup *messages* Loading 00debian-vars... No /etc/mailname. Reverting to default... Loading 00debian-vars...done Loading /etc/emacs/site-start.d/50autoconf.el (source)...done Loading /etc/emacs/site-start.d/50dictionaries-common.el (source)... Loading debian-ispell... Loading /var/cache/dictionaries-common/emacsen-ispell-default.el (source)...done Loading debian-ispell...done Loading /var/cache/dictionaries-common/emacsen-ispell-dicts.el (source)...done Loading /etc/emacs/site-start.d/50dictionaries-common.el (source)...done Loading /etc/emacs/site-start.d/50festival.el (source)...done Loading /etc/emacs/site-start.d/50gtk-doc-tools.el (source)...done Loading /etc/emacs/site-start.d/50ibus-el.el (source)...done IBus: Xlib.protocol.request.QueryExtension IBus: Agent successfully started for display ":0.0"

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• Oracle Analytic Applications Strategy

  Chris Leone, Group Vice President of Applications Strategy at Oracle, talks to Fred about Analytic Application offerings, some product roadmaps and benefits to customers.

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• Is there a command-line utility app which can find a specific block of lines in a text file, and replace it?

  - by fred.bear

  UPDATE (see end of question) The text "search and replace" utility programs I've seen, seem to only search on a line-by-line basis... Is there a command-line tool which can locate one block of lines (in a text file), and replace it with another block of lines.? For example: Does the test file file contain this exact group of lines: 'Twas brillig, and the slithy toves Did gyre and gimble in the wabe: All mimsy were the borogoves, And the mome raths outgrabe. 'Beware the Jabberwock, my son! The jaws that bite, the claws that catch! Beware the Jubjub bird, and shun The frumious Bandersnatch!' I want this, so that I can replace multiple lines of text in a file and know I'm not overwriting the wrong lines. I would never replace "The Jabberwocky" (Lewis Carroll), but it makes a novel example :) UPDATE: ..(sub-update) My following comment about reasons when not use sed are only in the context of; don't push any tool too far beyond its design intent (I use sed quite often, and consider it to be invaluable.) I just now found an interesting web page about sed and when not to use it. So, because of all the sed answers, I"ll post the link.. it is part of the sed FAQ on sourceforge Also, I'm pretty sure there is some way diff can do the job of locating the block of text (once it's located, the replacement is quite straight foward; using head and tail) ... 'diff' dumps all the necessary data, but I haven't yet worked out how to filter it , ... (I'm still working on it)

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