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• How do I launch unicorn_rails as a startup script with rvm installed on my ubuntu 12.04 machine?

  - by ne0lithic_coder

  I have a rails app on my server. I have a script startup.sh which launches unicorn_rails and then nginx. In order to get my server to launch on system boot, I've added a line to call my startup script to /etc/rc.local However, this doesn't work. I added some checks to make sure the script is being called and it is. It's the call to unicorn_rails which I think is failing. Does anyone have experience with this?

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• Jquery $.post and PHP - Prevent the ability to use script outside of main website.

  - by Tim

  I have a PHP script setup using Jquery $.post which would return a response or do an action within the targeted .php file within $.post. Eg. My page has a form where you type in your Name. Once you hit the submit form button, $.post is called and sends the entered Name field value into "mywebsite.xyz/folder/ajaxscript.php" If a user was to visit "mywebsite.xyz/folder/ajaxscript.php" directly and somehow POST the data to the script, the script would return a response / do an action, based on the submitted POST data. The problem is, I don't want others to be able to periodically "call" an action or request a response from my website without using the website directly. Theoretically, right now you could determine what Name values my website allows without even visiting it, or you could call an action without going through the website, by simply visiting "mywebsite.xyz/folder/ajaxscript.php" So, what measures can I take to prevent this from happening? So far my idea is to ensure that it is a $_POST and not a $_GET - so they cannot manually enter it into the browser, but they could still post data to the script... Another measure is to apply a session key that expires, and is only valid for X amount of visits until they revisit the website. ~ Or, just have a daily "code" that changes and they'd need to grab this code from the website each day to keep their direct access to the script working (eg. I pass the daily "code" into each post request. I then check that code matches in the ajax php script.) However, even with these meaures, they will STILL have access to the scripts so long as they know how to POST the data, and also get the new code each day. Also, having a daily code requirement will cause issues when visiting the site at midnight (12:00am) as the code will change and the script will break for someone who is on the website trying to call the script, with the invalid code being passed still. I have attempted using .htaccess however using: order allow,deny deny from all Prevents legitimate access, and I'd have to add an exception so the website's IP is allowed to access it.. which is a hassle to update I think. Although, if it's the only legitimate solution I guess I'll have to. If I need to be more clear please let me know.

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• How do I make the unresponsive script warning come up?

  - by tmim

  I am making a firefox extension and I have a manual script entry box. I don't want the script to hang the browser when it is run. How can I make an unresponsive script error popup come up if the script runs for longer than a second.

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• Including a local file but not making it run with the main script?

  - by Rob

  I have one script that loads very quickly, but I have another script that I want to run with that script, but that scripts processes a LOT slower. The second script doesn't need to output anything to the user, it only needs to run. Is there a way I can include it locally, without making the user have to wait for it to load?

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• PHP: how to get the url of the currently executing script?

  - by powerboy

  For example, the url http://www.domain.com/folder/script.php sends a request to /var/www/domain/folder/script.php. In script.php, I want to echo http://www.domain.com/folder/ (not /var/www/domain/folder/, not http://www.domain.com/folder/script.php). What is the simplest way to do this?

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• How can a Script be passed through a TextArea into a Form?

  - by William Calleja

  I need to make a form with a Text Area that accepts lines of script, any kind of script be it javascript, css, html, vbscript, whatever. How can the script be passed to a form post? EDIT: How can this script be modified so it can be inserted into a Database? Specifically SQL Server 2005

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• How can I process a Perl array element in a shell script?

  - by joe

  For example: In Perl: @array = (1,2,3); system ("/tmp/a.sh @array" ); In my shell script, how do I handle this array in shell script? How do I handle the shell script to receive the arguments, and how do I use that array variable in shell script?

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• Is there a way to pass params to a script in TCL that is run using eval source?

  - by Corv1nus

  I have a script that calls: eval source \{$scriptfile\} where $scriptfile is another TCL script. Is there way to pass parameters to the script? I'd like to do something like: set sampleData "ID=14678934" eval source \{$scriptfile\} $sampleData I know that this isn't allowed but, is there a way to pass data to a script that is being executed using eval source?

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• How do I remove database name from SQL Server generated script?

  - by bucha

  Anytime I use 'script table as' - 'Insert To' (or other command), the script generated automatically places the database name in the script. Such as: INSERT INTO [DatabaseName].[dbo].[tblToBeInserted] ... While not a huge problem to just delete it, it has slipped by a few times and the script breaks if run on a different server with a different database name but has the same schema. (Such as running on [DatabaseName.Test]) Is there an option I can change, or can I modify the output in any way to remove this?

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• Can I do filename pattern matching in a bash script?

  - by Bob Bowden

  Can I do filename pattern matching in a bash script? "test" is a directory with the following files ... bob@bob-laptop:~/test$ ls exclude exclude1 exclude2 include1 include2 from the command line, if I want to exclude some of the files, I can do ... bob@bob-laptop:~/test$ echo !(exclude*) include1 include2 but, if I put that command in a script (named exclude) ... bob@bob-laptop:~/test$ cat exclude echo !(exclude*) when I execute it, I get an error ... bob@bob-laptop:~/test$ ./exclude ./exclude: line 1: syntax error near unexpected token (' ./exclude: line 1:echo !(exclude*)' I've tried every (I think) variation of escaping some, all or none of the special characters and I still get an error. What am I missing here? If I can't do this, would someone please be so kind as to explain why?

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• Why does my Perl CGI script raise an internal server error on Apache?

  - by itcplpl

  I've installed apache2 on Ubuntu 11.04, and localhost is working. I created a simple printenv.pl script and put it in the following directory $ mv printenv.pl /usr/lib/cgi-bin/ $ chmod +rx /usr/lib/cgi-bin/printenv.pl However when I go to http://127.0.0.1/cgi-bin/printenv.pl, I get a 500 Internal Server Error I checked the error log at /var/log/apache2, and this is what it says: [Mon Oct 24 11:04:25 2011] [error] (13)Permission denied: exec of '/usr/lib/cgi-bin/printenv.pl' failed [Mon Oct 24 11:04:25 2011] [error] [client 127.0.0.1] Premature end of script headers: printenv.pl Any suggestions on how I can fix this and run CGI scripts on my localhost?

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• Should devs, testers and business users have one unified test script?

  - by Carlos Jaime C. De Leon

  In development, I would normally have my own test scripts that would document the data, scenarios and execution steps that I plan to test; this is my dev test plan. When the functionality has been deployed to Test, testers test it using their own test script that they wrote. In UAT, the business user then tests using their own test plan. In retrospect, it looks like this provides a better coverage, with dev tests having a mix of black and white box testing, while testers and business users focus on black box testing. But on the other hand, this brings up distinct test cases that only are executed per stage (ie. some cases which testers thought of are only executed on Test stage) and it would like the dev missed it, which makes it a finding/bug. Is it worth consolidating the test scripts from the start? Thus using one unified test script, or is it abit difficult to do this upfront?

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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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• How can I add a bash script to the Unity launcher?

  - by hippyjim

  I open my favourite IDE (PhpStorm) using a custom bash script. I would like to add the script to the Unity launcher. I thought I could add it by clicking the "keep in launcher" option, and sure enough, the icon stays on the launcher after I close the app. But clicking the icon doesn't reopen the IDE - the launcher just sits there, flashing. When I relogin in, the launcher icon is gone. Anyone got any ideas how I can make this work?

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• SQL Server: How do I generate the table schema and populate it with inserts in a script?

  - by Paula DiTallo

  Originally posted on: http://geekswithblogs.net/AskPaula/archive/2014/05/20/156469.aspx In SSMS, there's a Generate Script utility (read:  only available under version 2008 and up) . Here are the steps you would need to take to make use of the utility: Right click on the database you're interested in and go to Tasks -> Generate ScriptsSelect the tables and/or any other objects you'd like in order to get them into the script.Navigate to Set scripting options. Click on Advanced.Under the General category, navigate to Type of data to scriptSelect the Schema and Data option to get the insert statements generated. Click OK.

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• How to make "Chameleonic Ambiance Script" select a lighter hue for dark wallpapers?

  - by Nirmik

  I just started using an amazing script that makes the default "Ambiance" theme use that selected color. More details can be found Here I find this really amazing. But with my wallpaper being as shown below, the selection color, progress-bars color as after running the script are too dark (that can be seen in the following screenshot). I've learnt that what is done is the average color from the wallpaper is selected and then its tint is used (which is always a darker tint). So can I make this algorithm or whatever select a lighter tint of the average color?? Or can it be made to select the lightest color instead of the average color from the wallpaper??

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• What will be a good python script (or your favorite language goes here) to test a system's performance and capabilities?

  - by dassouki

  Let's say you're in a computer store looking at 10 laptops, you want to really compare the system's capabilities. What will be an efficient "your fav language goes here" script that will allow you to do this? As an example, when I go to the store I usually open a macbook and a pro's terminal and write an equation in python, iterate it a million or so times, and time them. I like to compare the difference in time. What would be an ideal and simple script that can efficiently compare systems?

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• Script / App to unRAR files, and only delete the archives which were sucessfully expanded.

  - by Jeremy

  I have a cron job which runs a script to unrar all files in a certain directory (/rared for argument's sake) and place the expanded files in /unrared. I would like to change this script so that it deletes the original rar archives from /rared only if they successfully extracted. This does not mean that unrar has reported that they have been fully extracted, because I have had data corruption during decompression before. Ideally (pie-in-the-sky, just to give you an idea of what I'm shooting for,) the unrar program would include this functionality, comparing an expected md5sum value with the actual md5sum value and only deleting the archive if they match. I don't mind scripting this entire process if I have to, but there must be a better way than unraring twice and comparing md5sums.

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• What does /dev/null mean in a shell script?

  - by rishiag

  I've started learning bash scripting by using this guide: http://www.tldp.org/LDP/abs/abs-guide.pdf However I got stuck at the first script: cd /var/log cat /dev/null > messages cat /dev/null > wtmp echo "Log files cleaned up." What do lines 2 and 3 do in Ubuntu (I understand cat)? Is it only for other Linux distributions? After running this script as root, the output I get is Log files cleaned up. But /var/log still contains all the files.

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• implementing a high level function in a script to call a low level function in the game engine

  - by eat_a_lemon

  In my 2d game engine I have a function that does pathfinding, find_shortest_path. It executes for each time step in the game loop and calculates the next coordinate pair in the series of coordinates to reach the destination object. Now I want to call this function in a scripting language and have it only return the last coordinate pair result. I want the game engine to go about the business of rendering the incremental steps but I don't want the high level script to care about the rendering. The high level script is only for ai game logic. Now I know how to bind a method from C to python but how can I signal and coordinate the wait time between the incremental steps without the high level function returning until its time for the last step?

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• Rich Text Editor (YUI Simple Text Editor used) not sending data to next page

  - by Aman Chhabra

  I am using a simple text editor from YUI, but when I click submit the code in the textarea/editor is not sent to the next page. I want to be able to receive it on the subsequent page and then store it in a DB(MySql). I have wasted lot of time already. Please help. HTML FILE: <html> <head> <script type="text/javascript" src="http://yui.yahooapis.com/combo?2.9.0/build/yahoo-dom-event/yahoo-dom-event.js&2.9.0/build/container/container_core-min.js&2.9.0/build/element/element-min.js&2.9.0/build/editor/simpleeditor-min.js"></script> <link rel="stylesheet" type="text/css" href="http://yui.yahooapis.com/2.9.0/build/editor/assets/skins/sam/simpleeditor.css" /> <link rel="stylesheet" type="text/css" href="http://yui.yahooapis.com/2.8.2r1/build/assets/skins/sam/skin.css"> <!-- Utility Dependencies --> <script src="http://yui.yahooapis.com/2.8.2r1/build/yahoo-dom-event/yahoo-dom-event.js"></script> <script src="http://yui.yahooapis.com/2.8.2r1/build/element/element-min.js"></script> <!-- Needed for Menus, Buttons and Overlays used in the Toolbar --> <script src="http://yui.yahooapis.com/2.8.2r1/build/container/container_core-min.js"></script> <script src="http://yui.yahooapis.com/2.8.2r1/build/menu/menu-min.js"></script> <script src="http://yui.yahooapis.com/2.8.2r1/build/button/button-min.js"></script> <!-- Source file for Rich Text Editor--> <script src="http://yui.yahooapis.com/2.8.2r1/build/editor/editor-min.js"></script> <script> YAHOO.util.Event.on('submit', 'click', function() { myEditor.saveHTML(); var html = myEditor.get('element').value; }); (function() { var Dom = YAHOO.util.Dom, Event = YAHOO.util.Event; var myConfig = { height: '200px', width: '900px', dompath: true, }; myEditor = new YAHOO.widget.SimpleEditor('msgpost', myConfig); myEditor.render(); })(); </script> </head> <body class="yui-skin-sam"> <form action="submit.php" method="post"> <textarea name="msgpost" id="msgpost" cols="50" rows="10"></textarea> <input type="submit" value="Submit" onsubmit="return myDoSubmit()"/> </form> </body> </html>

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• How to debug a tcl script which is argument to an executable?

  - by user321047

  I have a application which takes tcl script as argument. I want to debug tcl script when the application processes it. My development environment consists of Dynamic Languages Toolkit from www.eclipse.org/dltk along with Active state remote debugger -dbgp_tcldebug. I am able to debug the individual tcl scripts with this setup. I created a tcl project in eclipse and added 'startup.tcl' and 'argumentScript.tcl' scripts and added following command to the startup script, set ExecutableName "xyz.exe" set returnValue [catch {eval exec $ExecutableName "argumentScript.tcl" } result] My debugger works fine with 'startup.tcl' script. I added the breakpoint in 'argumentScript.tcl' but it is not working. How can I debug the "argumentScript.tcl" script ? Edit: A solution without using eclipse environment is Tcl Dev Kit with remote debugging feature.

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• Ruby File IO question; Maintain file read position between script executions

  - by macek

  I have two files a.txt and b.txt (henceforth a and b). My script iterates through a, does some operation, and potentially inserts a line to b. In the event the script stops, I need it to pick up where it left off. In the example below: foo was copied to b bar was copied to b zim was not copied to b (did not pass some criteria) gaz was copied to b Script stops (for whatever reason) When script starts again, how to open a and start on line "dib"? a.txt foo bar zim gaz // <= last successful copy dib // <= I want to start here on next script execution gir b.txt foo bar gaz // <= note omission of "zim" above gaz

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• How can I compile a Perl script inside a running Perl session?

  - by Joel

  I have a Perl script that takes user input and creates another script that will be run at a later date. I'm currently going through and writing tests for these scripts and one of the tests that I would like to perform is checking if the generated script compiles successfully (e.g. perl -c <script>.) Is there a way that I can have Perl perform a compile on the generated script without having to spawn another Perl process? I've tried searching for answers, but searches just turn up information about compiling Perl scripts into executable programs.

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• How come checkbox state is not always passed along to PHP script?

  - by George Edison

  I have an HTML form: <form action='process.php' method='post'> <input type='checkbox' name='check_box_1' /> Check me!<br> </form> Here is a section from the PHP script process.php: echo (isset($_POST['check_box_1']))?'Set':'Not set'; The output of the script when the checkbox is set is Set But when the checkbox is not set, the output is: Not set Why is this? This seems like a very poor design because my PHP script checks a number of $_POST variables to make sure they were passed along to the script. When the $_POST['check_box_1'] value is not set, then how do I know whether the script failed to pass along the value or the checkbox was just not set?

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