Robocopy-target-sl\a\junction-dir-absolute Links to C:\Users\Marco\Desktop\Linktest\robocopy-source\b\foo.txtĭirectory with copied content of %home%\robocopy-source\b\ Links to %home%\robocopy-source\b\foo.txt (and itself) Using the Link Shell Extension, we can now see what has happened: Robocopy robocopy-source robocopy-target-xjf /mir /dcopy:dat /xjf Robocopy robocopy-source robocopy-target-xjd /mir /dcopy:dat /xjd Robocopy robocopy-source robocopy-target-xj /mir /dcopy:dat /xj Robocopy robocopy-source robocopy-target-sl /mir /dcopy:dat /sl Robocopy robocopy-source robocopy-target /mir /dcopy:dat Mklink symlink-file-absolute %home%\robocopy-source\b\foo.txt Mklink /h hardlink-file-absolute %home%\robocopy-source\b\foo.txt
Mklink /d symlink-dir-absolute %home%\robocopy-source\b\ Mklink /j junction-dir-absolute %home%\robocopy-source\b\ Hard links and junctions are always absolute, even if you pass a relative target. Symbolic links can be relative or absolute, depending on how you pass the target parameter. Trying to create a junction to a file will succeed, but the junction will be broken. Junctions, which are links to directories.Trying to create a hard link to a directory results in an error. Symbolic links to files and directories.I have created a batch script to find out how Robocopy works with and without these options. xjd Excludes junction points for directories. xj Excludes junction points, which are normally included by default. sl Don't follow symbolic links and instead create a copy of the link. The optional error condition is added.The Robocopy docs lists options that control Robocopy's behavior regarding file system links: The following changes were made to align with the IEEE P1003.1a draft standard: Moved from X/OPEN UNIX extension to BASE. The Base Definitions volume of IEEE Std 1003.1-2001, CHANGE HISTORYįirst released in Issue 4, Version 2. Since IEEE Std 1003.1-2001 does not require any association of file times with symbolic links, there is no requirement
Normal permission checks are made on each component of the symbolic link pathname during its resolution. A symbolic link can cross file system boundaries.
Named by the path1 argument need not exist when the link is created. A symbolic link provides no such assurance in fact, the file The presence of a hard link guarantees theĮxistence of a file, even after the original name has been removed. Like a hard link, a symbolic link allows a file to have multiple logical names. The length of the path2 argument exceeds bytes (including the terminating null byte), or the length of the string pointed to by path1 A loop exists in symbolic links encountered during resolution of the path2 argument. An I/O error occurs while reading from or writing to the file system. The path2 argument names an existing file or symbolic link. The symlink() function shall fail if: Write permission is denied in the directory where the symbolic link is being created, or search permission is denied for aĬomponent of the path prefix of path2. Upon successful completion, symlink() shall return 0 otherwise, it shall return -1 and set errno to indicate the If the symlink() function fails for any reason other than, any file named by path2 shall be unaffected. The string pointed to by path1 shall be treated only as a character string and shall not be validated as a pathname. Path1 ( path2 is the name of the symbolic link created, path1 is the string contained in the symbolic The symlink() function shall create a symbolic link called path2 that contains the string pointed to by Int symlink(const char * path1, const char * path2 ) NAME symlink - make a symbolic link to a file SYNOPSIS A newer edition of this document exists here Symlink The Open Group Base Specifications Issue 6Ĭopyright © 2001-2004 The IEEE and The Open Group, All Rights reserved.
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