I need to create a directory for a file. The easiest path would be to create a directory with the same name as the file, and put the file there.
Is there any case where a valid file name would be an invalid directory name?
The directory will of course be created on the same system as where the file name is valid.
So basically I'm asking if there is any system where there are different limitations on directory names and file names.
As the number of characters in a path is limited on some filesystems, any file that uses more than half the limit of path characters would cause problems if put into a directory of the same name.
Related
I'm trying to build a file based integration where files are dumped in one of the subdirectories of a main directory for processing. I need to get the name of the sub-directory to know which client the file is for. So if I have:
/uploads/foo/bar.txt
I need to process that file and know that it's for client "foo". I'm not sure how to get that part and set it as a header for the processor that processes the bar.txt file. I've got it picking up files and processing, now I need to add in this piece.
Anyone have ideas for me?
You can get most of this information in the header of the exchange. In your situation as you are consuming the file the following items are avlable:
CamelFileName: Name of the consumed file as a relative file path with
offset from the starting directory configured on the endpoint.
CamelFileNameOnly: Only the file name (the name with no leading
paths).
CamelFileAbsolute: A boolean option specifying whether the consumed
file denotes an absolute path or not. Should normally be false for
relative paths. Absolute paths should normally not be used but we
added to the move option to allow moving files to absolute paths. But
can be used elsewhere as well.
CamelFileAbsolutePath: The absolute path to the file. For relative
files this path holds the relative path instead.
CamelFilePath: The file path. For relative files this is the starting directory + the relative filename. For absolute files this is the absolute path.
CamelFileRelativePath: The relative path.
CamelFileParent: The parent path.
CamelFileLength: A long value containing the file size.
CamelFileLastModified: A Date value containing the last modified
timestamp of the file.
You can query these headers for the information you are looking for using the following example as guidelines:
<log message ="${header.CamelFileAbsolutePath}"/>
See the file component documents at the Camel website for more details.
I'm looking to list and store the contents of a directory in a struct using C on Windows.
I got a problem with stat(), I don't really understand this line
if (statut.st_mode & S_IFDIR)
So I want to understand how it works for checking if it's a directory or a file?
stat() retrieves a block of information describing the specified file. Directories are also files. A directory can be thought of as a file that contains other files.
So, in the file's st_mode, you can see whether the current file is actually a directory by checking for the presence of the S_IFDIR bit.
How would I go about making a program that scans for a certain file inside a certain directory, not on the C:\ drive?
I know that IF EXIST does find a certain file, but I want it to to only try to find a certain file inside a certain directory, not on the C:\ as a whole.
Add the full path and filename to the IF EXIST and it will only check in that specified folder.
IF EXIST "C:\folder\folder2\file.ext" ...
Edited by Magoo - added quotes which are required if the full path contains spaces or some other characters
I'm using a Mac. I need to rename a file in the /Library/Application Support/AppName/filename.aiff
This is the system library and not /User/username/Library...
I'm using the rename(old name, new name) function. This function doesn't work (even though it doesn't return an error) if I place the file in the /Library/Application Support/AppName directory but it works properly if I place the file, for example, in /User/username/Documents/filename.aiff.
I don't know what the problem is. Any help would be appreciated. Thanks!
You don't own the directory you're trying to move files into:
/Users/Username/... is a user owned directory, so you're allowed to manipulate files there.
/Library is not a user owned directory.
In order to manipulate files in a non-user owned directory you would need elevated permissions. Instead of using /Library you should be using ~/Library, which is the user owned directory. ~/Library is the shorthand name for /Users/Username/Library.
If the rename is working fine in other path means the problem should be related to permission to access file or with the path searched for file.
If in fat16 system i am much confused about distinguishing a sub-directory and a file. As sub directory and a file have similar structure, how do we distinguish a directory and a file and how do we traverse through directories to reach the file?
I initially thought all the directory entries will start with '0x2e' as 1st byte of 8.3 naming convention in fat16. But practically i couldn't find all the directories starting with 0x2e but directly the name of the directory.
So, how can i distinguish directory and a file in fat16?
Directories have the 0x10 bit set in the attribute field; files do not. The first byte is "." (0x2E) for self and parent directories, if present (which they aren't in the root).
The content of the directory "file" is an array of directory entries.
Ignoring long file names, the way you search for a file is:
SearchDirectory = root
Parse off 8.3 name from remaining path
DirectoryEntry = Look up 8.3 name in SearchDirectory
If remaining path is empty, then DirectoryEntry is the requested entity
If Directory.Attribute & 0x10 == 0 then ERROR (expecting a directory)
SearchDirectory = DirectoryEntry.contents
Goto 2