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• directory_map() not working outside of application

  - by iamdadude

  Is there a reason as to why $map = directory_map('./', TRUE); works perfectly and, $map = directory_map('../', TRUE); doesn’t work at all? I tried creating a directory with the basic mkdir(); PHP function (http://php.net/mkdir) and it didn’t work either. Can anyone set me in the right direction as to what I’m doing wrong and how I can fix it? Thanks!

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• Fork a process and send data to it inside Rails

  - by taro

  I'm making a Rails application. In the one action I need to spawn a long running process. This is not a problem. I can fork new process using spawn gem or some other. But some time after process has been spawned, user must be able to pass additional data to that process. Sure, I can fork process which will listen a UNIX socket, store socket address in the HTTP session and communicate with that process using drb protocol when user will require to pass new data to process. But I think it is not best solution and it will be a problem to deploy an application to the hosting. What is the easy way to do that?

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• Detecting and interacting with long running process

  - by jacquesb

  I want a script to start and interact with a long running process. The process is started first time the script is executed, after that the script can be executed repeatedly, but will detect that the process is already running. The script should be able to interact with the process. I would like this to work on Unix and Windows. I am unsure how I do this. Specifically how do I detect if the process is already running and open a pipe to it? Should I use sockets (e.g. registering the server process on a known port and then check if it responds) or should I use "named pipes"? Or is there some easier way?

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• what are the following keyboard shortcuts in a terminal?

  - by kloop

  I am trying to figure out a few keyboard shortcuts in a terminal in mac osx (and Linux): In the command line: go to the next word go to the previous word go to the end of the line go to the beginning of the line This will make it easier to change commands.. Right now, I am using the left/right arrow keys, which is time consuming. I used bind -p as suggested below. EDIT: What do the following key bindings mean? "\e\e[D": backward-word "\e[1;5D": backward-word "\e[5D": backward-word "\eb": backward-word and: "\e\e[C": forward-word "\e[1;5C": forward-word "\e[5C": forward-word "\ef": forward-word

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• html/css: set div bounding box to window height

  - by noamtm

  It looks like I'm missing something basic. I want a certain DIV to have the height of the window. The effect should be that there's never any need to scroll down. Do I have to use JavaScript? I was told that it's possible with css, but I can't find the relevant property - or I'm doing something wrong.

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• Configure firewalld for OpenVPN (server-bridge) in Fedora 20

  - by rsc1975

  I've installed an OpenVPN server (server-bridge) on Fedora 20, but I cannot get it to work. I'm almost sure that It's a firewall issue. I'm trying to connect from an OSX client, but I can connect (just connect to VPN server, without access to anything) before the bridge is configured in server, however once I configure the bridge interface (using this script), then I cannot connect anymore. I've configured it as server-bridge, following these HOW-TOs from Fedora and OpenVPN Ethernet-Bridge. The firewall config is explained using iptables: iptables -A INPUT -i tap0 -j ACCEPT iptables -A INPUT -i br0 -j ACCEPT iptables -A FORWARD -i br0 -j ACCEPT However, in Fedora 20, by default, It's installed firewalld, so, Can anyone tell me the equivalent commands using firewall-cmd ? I read the firewalld guide, but It's not clear to me how to achieve it (I'm a developer, no SysAdmin). I know that I can install iptables, but I want it to work with firewalld.

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• Detecting when a process has finished (but not exited)

  - by Egwor

  I have a program that's run in unix (that I have no control over) that when finished prints 'Completed successfully' but does not exit. I want to automatically detect when the process finishes (by checking the output of the command), so that I can kill the process and so that I can proceed do other activities. The complexity comes because I want to be able to run multiples of these scripts concurrently. (One activity I need to do requires the script to be called with various inputs, but each time the script runs it takes a while to return, and so I want to do them in parallel) Has anyone done something similar to this? I could redirect the stderr and stdout output of the command to a temporary file which has a random file name, then tail the file and pipe to grep for the end conditions (I.e. the certain log lines). The problem is, surely tail -f would keep running, and so it would never exit. Should I poll? If so, what's the best approach?

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• Vim not restoring screen contents on Debian?

  - by peu ping

  I always thought Vim restored the previous contents of the screen upon closing. This allows me to remember what commands I was typing previously and what I wanted to do next. Recently I've been using Debian 6 and Ubuntu (CLIs only) in a VM for a development project and I've been extremely annoyed with how Vim is operating. After I close the file its contents stay on the screen making me second guess whether I'm still in Vim or not, and having to use history to find out what I typed previously. I've been unable to find any solution. Using tput smcup and rmcup for instance does absolutely nothing.

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• I think I don't understand git branches

  - by Hans

  Salutations everyone, I have been working on a bash script as a small summer project to learn more about UNIX scripting and on using git. This has been the first time that I have used branches in git, normally I just stick to master. I was viewing the git log with the graph (git log --graph) when I noticed that my 'develop' branch seemed to have merged with 'master'. Something like this: master ----1--------3----4----5----6----HEAD develop \---2---/ but commits 3 onwards were done within the develop branch. Doing git checkout master and git checkout develop showed this to be true. What exactly is going on? Is this what is known as fast-forwarding? P.S.: Commits 1 and 2 are also a mystery to me being that commit 2 is actually an amendment of commit 1 (as far I thought, I used this advice)

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• How to do svn ignore on a single file?

  - by Zando

  I know it's a basic question but I've tried every combination of propedit propset, etc. In an existing project, there's a file (let's call it 'error.log) I want to ignore for all future commits. What's the command-line syntax to do so?

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• Updating a sql server table with data from another table

  - by David G

  I have two basic SQL Server tables: Customer (ID [pk], AddressLine1, AddressLine2, AddressCity, AddressDistrict, AddressPostalCode) CustomerAddress(ID [pk], CustomerID [fk], Line1, Line2, City, District, PostalCode) CustomerAddress contains multiple addresses for the Customer record. For each Customer record I want to merge the most recent CustomerAddress record where most recent is determined by the highest CustomerAddress ID value. I've currently got the following: UPDATE Customer SET AddressLine1 = CustomerAddress.Line1, AddressPostalCode = CustomerAddress.PostalCode FROM Customer, CustomerAddress WHERE Customer.ID = CustomerAddress.CustomerID which works but how can I ensure that the most recent (highest ID) CustomerAddress record is selected to update the Customer table?

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• Emacs equivalent of this Vim command to run my tests?

  - by eightbitraptor

  I'm using Emacs at the moment and experimenting with it for my Rails development and there is one thing that I do quite regularly in Vim and I'd like to know if an equivalent exists in Emacs, or an alternative workflow to achieve the behavior that I need. The command in Vim is :map ;t :!rspec --no-color %<cr> Essentially this maps a key combination to run a bash/shell command on the file represented by the current buffer (% expands to the filename at runtime, the <cr> is just a carriage return at the end to execute the command). I map all sorts of random little commands as and when I need them and I really miss the immediacy of this approach. How can I achieve something similar?

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• A scripting langauge for Windows?

  - by WhyKiki

  I work in Windows and often find the need to code some script that manipulates files or basic string manipulation. Currently, I'm doing this using PHP but having a LAMP stack for this seems overkill. I've tried things like autoHotkey but the syntax and functionality is horrific. So I'm looking for a scripting with: a) a sane syntax b) lots and lots of built-in libraries, functions, etc c) minimal setup. Preferably, I would like to code and run the script from my app launcher of choice, Executor

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• Process requires redirected input

  - by initialZero

  I have a UNIX native executable that requires the arguments to be fed in like this prog.exe < foo.txt. foo.txt has two lines: bar baz I am using java.lang.ProcessBuilder to execute this command. Unfortunately, prog.exe will only work using the redirect from a file. Is there some way I can mimic this behavior in Java? Of course, ProcessBuilder pb = new ProcessBuilder("prog.exe", "bar", "baz"); does not work. Thanks!

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• How to integrate camera image into physics engine?

  - by Pedro

  I recently came across this and would like to implement something similar. The basic approach is clear: I have to threshold the image and check if a virtual object collides with the remaining foreground. Instead of implementing the physics myself, I'd like use an engine like Box2D. But how do I integrate the thresholded image into the physics engine so it is possible to interact with virtual objects?

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• REST Authentication in PHP (CodeIgniter)

  - by zidane

  I writing REST API form my web application. Application is written using CodeIgniter framework. Application itself is working fine, but I'm stuck on making REST Authentication. I think that basic Http Authentication will be good enough for some time. Public API is not yet planned. Is there any code example how to achieve REST Authentication so after user is authenticated he can freely call all protected methods.

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• How can I convert (string) timestamp to mysql datetime on Windows 32 bit PHP?

  - by user239619

  I'm attempting to call LinkedIn's API and store Network Updates. Each update has a Unix timestamp that I'm retrieving as a string variable from the REST XML response. I want to convert the string timestamp to a mysql datetime format. The date() function accepts an integer as the second argument for time to be converted. However, I'm on Windows 32 bit PHP and the integer type for this platform is limited to 2147483647. $timestamp = '1293714626675'; // sample pulled from linkedin $timestamp = (int) $timestamp; // timestamp now equals 2147483647 $mysqlDatetime = date('Y-m-d H:i:s', $timestamp); // produces incorrect time Is there a better method of creating the mysql datetime in PHP? I realize that I can convert it upon insert into MySQL however, that would require changing other dependent code.

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• Database design

  - by Hadad

  Hello, I've a system, that have two types of users (Companies and individuals).all types have a shared set of properties but they differ in another. What is the best design merge all in one table that allows null for unmatched properties, or separate them in two tables related to a basic table with a one to one relationship. Thanks.

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• Looking for a variety of Windows Form tutorials for visual studio.NET C++

  - by Tommy

  Looking for a variety of Windows Form (winforms) tutorials for visual studio.NET C++ I found a few basic ones: How to: Create a Windows Forms Application Walkthrough: Retrieving Dialog Box Information Collectively Using Objects Any others? Thank You.

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• how to get unique values set from a repeating values list

  - by Mariselvam

  I need to parse a large log file (flat file), which contains two column of values (column-A , column-B). Values in both columns are repeating. I need to find for each unique value in column-A , I need to find a set of column-B values. Is this can be done using unix shell command or need to write any perl or python script? What are the ways this can be done? Example: xxxA 2 xxxA 1 xxxB 2 XXXC 3 XXXA 3 xxxD 4 output: xxxA - 2,1,3 xxxB - 2 xxxC - 3 xxxD - 4

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• How do I cut and paste between different files using emacs?

  - by JStarx

  I'm running OSX 10.6.8. Lets say I have two terminal windows open and in each window I begin editing a different file using emacs. In the first file I select some text and then copy it (M-w), and in the second file I then try and paste it (C-y). I thought this would paste what I copied from the other file but instead I get the error message "previous command was not a yank". Those commands work just fine for copying and pasting within a single file, how do I copy and paste between different files?

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• how can i change texts in the dynamic textFields in SimpleButton instance (button symbol)?

  - by sasi

  hi every one, this may be a basic thing, but i couldn't find an answer by serching internet. I have created a simple button - Istance name = "btnsample" and there are two layers layer 0- button design with rollovers - layer 1- dynamic text field - instance name = "txtbtnlabel" btnsample.txtbtnlabel.text = "new button label; but it's giving followin error :-119:Access of possible undefined propety txtbtnlabel through a reference with static type flash.display:simpleButton. how to solve this problem?

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• Find original owning process of a Linux socket

  - by Rob H

  In Linux and other UNIX-like operating systems, it is possible for two (or more) processes to share an Internet socket. Assuming there is no parent-child relationship between the processes, is there any way to tell what process originally created a socket? Clarification: I need to determine this from "outside" the processes using the /proc filesystem or similar. I can't modify the code of the processes. I can already tell what processes are sharing sockets by reading /proc/<pid>/fd, but that doesn't tell me what process originally created them.

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• Wait for linux machine to be rebooted

  - by Theo

  I have a small script to install on my remote machine an update. I would like to reboot the machine remotely and if it is rebooted, continue with some more commands. What I currently do is: ssh root@myMachine << COMMANDS_ISSUED ###... Tasks init 6 COMMANDS_ISSUED sleep 180s ssh root@myMachine << POST_REBOOT_COMMANDS ###.... More stuff POST_REBOOT_COMMANDS Is there a more elegant way to do it? Like pinging the machine all 5 seconds up to a maximum of 4 minutes? I play with a few linux machines which have different boot up times and if my script would continue immediately after reboot, this could safe quite some time for me. (Note: I don't want to parallelize execution over all machines as I want to see for each machine if everything worked fine)

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• Autopruning after a specified amount of row are created?

  - by Rob

  Basic question, sorry. Basically, I have a script that creates a MySQL entry each time someone visits the page. A logging script. However, I want to make it autoprune after, say, 100 visits. For example in pseudo code: if amount of rows > 100 { delete rows 1+ until amount of rows == 100 } So in a nutshell, each time a new row is added after 100, it needs to automatically remove the row with the smallest id (My primary key).

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