symlink

Behavior of cd/bash on symbolic links

由 北战南征 提交于 2019-11-27 12:06:07
问题 Assume I have the folders ~/a/b in my home folder, and the folder b contains a symbolic link to '..' named 'symlink'. Then I perform the following actions in bash: hm@mach:~$ cd a/b/symlink hm@mach:~/a/b/symlink$ pwd -P /home/hm/a hm@mach:~/a/b/symlink$ cd .. hm@mach:~/a/b$ pwd -P /home/hm/a/b pwd -P prints the current working directory, dereferencing all symbolic links. Why is the working directory /home/hm/a/b at the end, and not /home/hm? 回答1: bash is being "friendly"; when you cd /into/a

What is the difference between NTFS Junction Points and Symbolic Links?

由 限于喜欢 提交于 2019-11-27 10:17:10
At a high level, the only obvious difference between NTFS Junction Points and Symbolic Links is that Junctions are only able to be directories, while SymLinks are allowed to also target files. What other differences between the two exist? (Note, I've already seen this question and what I'm looking for is a bit different -- that question is looking for a pro and con list, I'm looking for a set of technical differences) Symbolic links have more functionality, while junctions almost seem to be a legacy feature because of their limitations, but the security implications of these limitations are

Dynamic (Default.png) splashscreen in 3.0 [iPhone SDK]

由 筅森魡賤 提交于 2019-11-27 09:09:58
I know it's possible to create a dynamically changable Default.png by creating a symbolic link. But that's not possible in iPhone SDK 3.0 anymore (only in 2.0). How can I make this in 3.0, or is this impossible? Tim This worked on iPhone OS 2.0 http://collison.ie/blog/2008/11/dynamic-defaultpng-files-on-the-iphone but not on iPhone OS 3.0 anymore. The default-screen is always black. I can change the default-screen in the documents-folder and the symbolic-link does link to that file. I tested that by browsing to the app-folder from the Simulator. I saw the right file in the documents-directory

Can you change what a symlink points to after it is created?

由 倾然丶 夕夏残阳落幕 提交于 2019-11-27 09:07:26
问题 Does any operating system provide a mechanism (system call — not command line program) to change the pathname referenced by a symbolic link (symlink) — other than by unlinking the old one and creating a new one? The POSIX standard does not. Solaris 10 does not. MacOS X 10.5 (Leopard) does not. (I'm tolerably certain neither AIX nor HP-UX does either. Judging from this list of Linux system calls, Linux does not have such a system call either.) Is there anything that does? (I'm expecting that

Create a symbolic link of directory in Ubuntu [closed]

由 此生再无相见时 提交于 2019-11-27 08:58:32
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . Below is my code for creating a symlink of a directory: sudo ln -s /usr/local/nginx/conf/ /etc/nginx I already created the directory /etc/nginx . I just want the contents of the source directory ( /usr/local/nginx/conf/ ) to be in the contents of the target directory ( /etc/nginx ). But when I execute the code,

How do you get PHP, Symlinks and __FILE__ to work together nicely?

由 狂风中的少年 提交于 2019-11-27 07:23:59
On localhost. I have the following directory structure: /share/www/trunk/wp-content/plugins/otherfolders /share/www/portfolio/wp-content/symlink Where symlink is a symbolic link to /trunk/.../plugins/ . Basically, this is because I need to test multiple WordPress installs and set them up, but I don't want to have to move plugins around and copy and paste them everywhere. However, sometimes I need to crawl up the directory tree to include a config file: $root = dirname(dirname(dirname(dirname(__FILE__)))); if (file_exists($root.'/wp-load.php')) { // WP 2.6 require_once($root.'/wp-load.php'); }

realpath() without resolving symlinks?

由 筅森魡賤 提交于 2019-11-27 05:56:42
问题 I already read about realpath() , but is there a function that I can pass a base directory and a filename that would give me the following result without resolving symlinks or checking whether files actually exist? Or do I have to use a modified realpath() ? "/var/", "../etc///././/passwd" => "/etc/passwd" 回答1: Here is a normalize_path() function: If the given path is relative, the function starts by prepending the current working directory to it. Then the special path components like .. , .

Soft link in Mercurial

由 本小妞迷上赌 提交于 2019-11-27 05:56:37
问题 Is there some equivalent in Mercurial to NIX soft- or hard- links to directories or files. Basically that a file (or directory) is linked to a file "somewhere else" and follows the version of that location (Unlike a regular branch I think, where one would have to merge) 回答1: Mercurial versions soft links that are internal to the repository just great. It'll detect them, record them, and create them for you. Is there a specific use case you're looking for? The closest thing to an link that

How do you determine using stat() whether a file is a symbolic link?

由 帅比萌擦擦* 提交于 2019-11-27 04:40:47
问题 I basically have to write a clone of the UNIX ls command for a class, and I've got almost everything working. One thing I can't seem to figure out how to do is check whether a file is a symbolic link or not. From the man page for stat() , I see that there is a mode_t value defined, S_IFLNK . This is how I'm trying to check whether a file is a sym-link, with no luck (note, stbuf is the buffer that stat() returned the inode data into): switch(stbuf.st_mode & S_IFMT){ case S_IFLNK: printf("this

Check if a file is real or a symbolic link

由 自古美人都是妖i 提交于 2019-11-27 04:29:44
Is there a way to tell using C# if a file is real or a symbolic link? I've dug through the MSDN W32 docs ( http://msdn.microsoft.com/en-us/library/aa364232(VS.85).aspx ), and can't find anything for checking this. I'm using CreateSymbolicLink from here, and it's working fine. Troy Parsons I have some source code for symlinks posted on my blog that will allow you to: create symlinks check whether a path is a symlink retrieve the target of a symlink It also contains NUnit test cases, that you may wish to extend. The meaty bit is: private static SafeFileHandle getFileHandle(string path) { return
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