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How to remove a directory from git repository?
... both directories;
git rm -r one-of-the-directories // This deletes from filesystem
git commit . -m "Remove duplicated directory"
git push origin <your-git-branch> (typically 'master', but not always)
Remove directory from git but NOT local
As mentioned in the comments, what you usually w...
belongs_to through associations
...tion cannot have a :through option. You're better off caching the question_id on Choice and adding a unique index to the table (especially because validates_uniqueness_of is prone to race conditions).
If you're paranoid, add a custom validation to Choice that confirms that the answer's question_id ...
Difference between RegisterStartupScript and RegisterClientScriptBlock?
...Script method:
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1"><title></title></head>
<body>
<form name="form1" method="post" action="StartupScript.aspx" id="form1">
<div>
<input type="hidden" name="__VIEWSTATE"...
Effects of the extern keyword on C functions
...tion.
At first, I thought that when defining extern int f(); in a single file forces you to implement it outside of the file's scope. However I found out that both:
...
Complete Working Sample of the Gmail Three-Fragment Animation Scenario?
...
Uploaded my proposal at github
(Is working with all android versions though view hardware acceleration is strongly recommended for this kind of animations. For non hardware accelerated devices a bitmap caching implementation should fit better)
Demo video with the animation is Here...
Ajax using https on an http page
...ttp to an https site. You will need to provide a Flash cross-domain policy file via your server to enable the cross-domain requests. Check out the blog posts at the end of the README to get a more in-depth explanation for how it works.
However, I should mention that Forge is better suited for reque...
Pointers vs. values in parameters and return values
...) *Server -- instantiate a web server for testing
func Open(name string) (*File, error) -- return a file access handle
In other cases, pointers are returned just because the structure may be too large to copy by default:
func NewRGBA(r Rectangle) *RGBA -- allocate an image in memory
Alternat...
How to use find command to find all files with extensions from list?
I need to find all image files from directory (gif, png, jpg, jpeg).
9 Answers
9
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What is the best way to ensure only one instance of a Bash script is running? [duplicate]
...
If the script is the same across all users, you can use a lockfile approach. If you acquire the lock, proceed else show a message and exit.
As an example:
[Terminal #1] $ lockfile -r 0 /tmp/the.lock
[Terminal #1] $
[Terminal #2] $ lockfile -r 0 /tmp/the.lock
[Terminal #2] lockfile: ...
How to add multiple font files for the same font?
...e for the @font-face CSS rule , but I don't get one thing. I have separate files for bold , italic and bold + italic . How can I embed all three files in one @font-face rule? For example, if I have:
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