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• Select a particular column using awk or cut or perl

  - by javed abbas

  Have a requirement to select the 7th column. eg: cat filename | awk '{print $7}' The issue is that the data in the 4th column has multiple values with blank in between. example - The last line in the below output: user \Adminis FL_vol Design 0 - 1 - group 0 FL_vol Design 19324481 - 3014 - user \MAK FL_vol Design 16875161 - 2618 - tree 826 FL_vol Out Global Doc Mark 16875162 - 9618 - /vol/FL_vol/Out Global Doc Mark

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• Define Rails Model Persistent Attributes in Model File

  - by Kevin Sylvestre

  I recently played with MongoDB in Rails using Mongoid. I like the ability to define attributes for models within the model file (as opposed to in migrations): class Person include Mongoid::Document field :name, :type => String field :birthday, :type => Date end For projects that cannot use a schema-less database, does a similar feature exist? Any gems or plugins that generate schemas from a similar syntax would be greatly appreciated. Thanks.

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• How to deal with JSON output that might be an array, or might be a value

  - by Summer

  Hi - I'm getting JSON-encoded output from another organization's API. In many cases, the output can be either an array of objects (if there are many) or an object (if there's just one). Right now I'm writing tortured code like this: if ( is_array($json['candidateList']['candidate'][0]) ) { foreach ($json['candidateList']['candidate'] as $candidate) { // do something to each object } } else { // do something to the single object } How can I handle it so the "do something" part of my code only appears once and uses a standard syntax?

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• Can you access AppleScript APIs from shell script on Mac OS X?

  - by Robusto

  I already do a lot with shell scripts on the Mac, but I loathe AppleScript, and I would love to be able to access Mac apps' APIs in some other way. Does anyone know any other way to get the power of AppleScript without the pain of its horrible syntax and meager documentation (and its slowness, if possible)?

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• Why won't the following haskell code compile?

  - by voxcogitatio

  I'm in the process of writing a small lisp interpreter in haskell. In the process i defined this datatype, to get a less typed number; data Number = _Int Integer | _Rational Rational | _Float Double deriving(Eq,Show) Compiling this fails with the following error: ERROR "types.hs":16 - Syntax error in data type declaration (unexpected `|') Line 16 is the line w. the first '|' in the code above.

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• C#- Console Program Ideas for Noob

  - by user335932

  So, Im a beginning C# programmer. I know basic syntax and simple things like if statements and loops(methods and classes too). I've only used console apps right now havent bothered with windows forms yet. So any simple app ideas that introduce new things important for C# programming. Also, NO tutorials. I want to make all by myself.

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• cmake and parallel building with "make -jN"

  - by Roman D

  Hi all, I'm trying to setup a parallel CMake-based build for my source tree, but when I issue $ cmake . $ make -j2 I get a jobserver unavailable: using -j1. Add '+' to parent make rule warning. Does anyone have an idea if it is possible to fix it somehow?

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• Why am I unable to create a trigger using my SqlCommand?

  - by acidzombie24

  The line cmd.ExecuteNonQuery(); cmd.CommandText CREATE TRIGGER subscription_trig_0 ON subscription AFTER INSERT AS UPDATE user_data SET msg_count=msg_count+1 FROM user_data JOIN INSERTED ON user_data.id = INSERTED.recipient; The exception: Incorrect syntax near the keyword 'TRIGGER'. Then using VS 2010, connected to the very same file (a mdf file) I run the query above and I get a success message. WTF!

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• What is the best approach to use different CFLAGS for the same source files?

  - by evilsocket

  Hello, i need to build the same source tree twice, 1 - with normal cflags to build the project binary 2 - with cflags plus -fPIC to build a static library that would be some sort of SDK to develop project dynamic modules. Using only one Makefile, what is the best approach to accomplish this? It would be nice to do some sort of : all: $(OBJECTS) lib_rule: $(OBJECTS) CFLAGS += -fPIC .cpp.o: $(CC) -c $< -o $@ $(CFLAGS) But obviously it can't be done. Thanks

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• Java IDE - find all INDIRECT usages/references of a function or class?

  - by GreenieMeanie

  In Netbeans or in Eclipse, you can use "Find Usages" or "References" from the right click context menu. If a() calls b(), using the functionality from b() will show you a(). However, what I want is to be able to see some kind of tree or have an option to see all usages of a given/class or method, such that if z() calls a() that using the functionality will show both z() and a(). Any IDE plugins or external tools that can do this?

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• Looking for a Java equivalent to .NET's Snippet Compiler

  - by Paul Sasik

  I am looking for a Java equivalent to .NET's Snippet Compiler. Is there any such utility out there? That or a really light weight Java IDE for Windows? Eclipse and NetBeans seem too heavy-weight to practice basic syntax.

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• Porting Oracle Date Manipulation

  - by Grasper

  I need to port this following from Oracle syntax to Postgresql. Both FLO_END_DT and FLO_START_DATE are of type DATE in Oracle, and TIMESTAMP WITHOUT TIME ZONE in Postgresql: SELECT TRUNC( TO_CHAR(ROUND(( FL.FLO_END_DT- FL.FLO_START_DT)* 24), '9999D99'),2) FROM FLOWS FL I am not familiar enough with Oracle to know what it is trying to accomplish. Any ideas?

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• What is wrong with this SimPy installation?

  - by dmindreader

  Alright, I have tried a bunch of times the python setup.py install command from my command prompt, and this is what I'm getting: SCREEN And when trying this: from SimPy.Simulation import * on Idle, I get this: Traceback (most recent call last): File "C:/Python30/pruebas/prueba1", line 1, in <module> from SimPy.Simulation import * File "C:\Python30\SimPy\Simulation.py", line 320 print 'SimPy.Simulation %s' %__version__, ^ SyntaxError: invalid syntax >>>

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• Java Swing: how do I define how a JTree displays the "user object"?

  - by java.is.for.desktop

  Hello, everyone! When using a JTree, a "user object" of a DefaultMutableTreeNode can be set. This can be of any kind, but to display it, its toString() value is used. This is not what I need. How can I change the way a user object is displayed? NOTE: My user object has to be something different than a String to be able to maintain mapping between the tree and the user objects.

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• Named parameters lead to inferior readability?

  - by Thomas Jung

  With named parameters like def f(x : Int = 1, y : Int = 2) = x * y your parameter names become part of the interface f(x=3) Now if you want to change the parameter names locally, you are forced to perserve the public name of the parameter: def f(x : Int = 1, y : Int = 2) = { val (a,b) = (x,y) a * b } If this a real problem? Is there a syntax to support this directly? Who do other languages handle this?

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• Why is Model.scoped generating invalid SQL?

  - by Nicholas H.

  When I run Book.scoped({:conditions => ['books.index LIKE ?','%query%']}) I get: ActiveRecord::StatementInvalid: SQLite3::SQLException: near "index": syntax error: SELECT * FROM "books" WHERE (books.index like '%query%') What am I doing wrong?

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• Writing a simple conditional statement in IRB

  - by Trip

  I am looking up all Organizations with the url "http://", and updating their attributes to "". My attempt: Organization(:all).select { |o| o.url = "http://" ? o.update_attribute("url","")} Which returns a compile error: SyntaxError: compile error (irb):2: syntax error, unexpected '}' from (irb):2 Any ideas?

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• Use jQuery to open PDF links with Google Docs

  - by Scott

  I already have pdf links set up. I am just looking to prepend Google's syntax in front of my current href using jQuery. i know the following doesn't work, but I feel I am close…? jQuery(document).ready(function() { jQuery("a[href$=.pdf]").attr("href", "http://docs.google.com/viewer?url=" + current.href); }); Can anyway help, please?

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• python while loop

  - by Bunny Rabbit

  def merge(l1,l2): i=0; while((l1[i]!=none)||(l2[i]!=none)): SyntaxError: invalid syntax being a newbie i can't figure out whats wrong with the abouve code.

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• Drupal using Solr externally on another machine?

  - by Meg

  I'd like to use the Drupal solr search module with the Apache Solr Search hosted on an external machine. I know that Acquia offer this as a service. But it's not an affordable option for me. I'd like to install Solr on an inexpensive VPS and have all my various Drupal sites which are on different hosts accessing the search functions. Am I barking up the wrong tree?

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• COM library for Explorer-like system views

  - by chrisd

  To provide a Windows Explorer-like view of the user's system, we have been using the shell controls from LogicNP (formerly Sky Software), but these have deficiencies, e.g., no support for Win7 libraries. The vendor has not responded to our inquiries about updates, so we're looking to replace the package. Requirements: ActiveX (no managed code or MFC) Tree and list views of the system Per-item checkboxes 32- and 64-bit versions Any recommendations for a replacement product? TIA.

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• JavaScript replace()

  - by d3020

  I'm trying to use the replace function in JavaScript and have a question. strNewDdlVolCannRegion = strNewDdlVolCannRegion.replace(/_existing_0/gi, "existing" + "newCounter"); That works. But I need to have the "0" be a variable. I've tried: _ + myVariable +/gi and also tried _ + 'myVariable' + /gi Could someone lend a hand with the syntax for this, please. Thank you.

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• I am faceing problem with this error of struts application.

  - by Sanjeev

  I am using My-eclipse and doing a struts project there is no syntax error but on starting tomcat server the following error appear in console. java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory and javax.servlet.UnavailableException: Parsing error processing resource path jndi:/localhost/strutspro/WEB-INF/struts-config.xml any idea whats the problem.

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• How to use kyewordsearch query in c#

  - by Lalit

  How to use kyewordsearch query in c# to implement the Search object. What settings need through Central administration to enable kyewordsearch query ? Also please send me Syntax for KeywordQuery.QueryText. means how to write query ?

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• can we set the height and width of teh datagrid in .cs

  - by prince23

  hi , would any one telll the syntax for setting the height and width fpr a data grid in .cs looking forward for an solution. thanks prince

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