Copy a Directory from Command Line
Copying a directory for the sake of backup is something I do often, especially when I'm trying to figure out why something isn't working when I use an external library. I'll copy the directory structure as a backup, mess around with the original source until I find a solution, then restore the original and change my overall system code to bring in my revised version.
You can't just use cp to copy a directory structure -- you'll see cp: myDir is a directory (not copied). You'll need to add a few additional flags to copy a directory structure:
cp -Rp source source_copy
The above command copies the directory recursively while keeping the same permissions!
![fetch API]()
One of the worst kept secrets about AJAX on the web is that the underlying API for it, XMLHttpRequest, wasn't really made for what we've been using it for. We've done well to create elegant APIs around XHR but we know we can do better. Our effort to...
![From Webcam to Animated GIF: the Secret Behind chat.meatspac.es!]()
My team mate Edna Piranha is not only an awesome hacker; she's also a fantastic philosopher! Communication and online interactions is a subject that has kept her mind busy for a long time, and it has also resulted in a bunch of interesting experimental projects...
![Record Text Selections Using MooTools or jQuery AJAX]()
One technique I'm seeing more and more these days (CNNSI.com, for example) is AJAX recording of selected text. It makes sense -- if you detect users selecting the terms over and over again, you can probably assume your visitors are searching that term on Google...
![RealTime Stock Quotes with MooTools Request.Stocks and YQL]()
It goes without saying but MooTools' inheritance pattern allows for creation of small, simple classes that possess immense power. One example of that power is a class that inherits from Request, Request.JSON, and Request.JSONP: Request.Stocks. Created by Enrique Erne, this great MooTools class acts as...
Why do you have the
-sflag in there? Looking at the--helpforcp, that’s the option to “make symbolic links instead of copying”, and according to Stack Overflow http://stackoverflow.com/questions/1240636 , that doesn’t even work recursively (with the-Rflag). (Nor can I see why you would want to copy an entire directory recursively only for it to be populated with symlinks, especially “for the sake of backup”.) Typo?EDIT: David has since corrected the error in question.
Another great option that I somehow always forget to use is -a (archive), used like so:
It copies structure and permissions and also preserves symlinks.
Just use rsync, faster and more options. )
Good to know. But I agree with @John
I prefer to use rsync for this purpose