Making a list of all the files in a directory

I have a simple little plotting program that I would like to give the following functionality:
I'd like the user to be able to select a directory (folder) containing several text files (as well as possibly other files and/or folders). The app should identify which files in the selected directory are text files and then do something with the information in each of those files. I have no problems allowing the user to select one file at a time, but I can't figure out how to have my cocoa app sort through a directory and pull out the files it needs.
If someone could at least point me to an example somewhere on the dev site that would be awesome. I've searched for "working with files", "working with directories", "file wrappers", etc. and can't seem to find a way to do this!

Thank you! I don't know why I couldn't find this when searching the help documentation.

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My file names have disappeared in grid view. Thery have been replaced with a dark bar along the bottom of the previews. If I toggle using the command u it hide the bar but I still can't see the file name. In list view all the file names are OK.

My file names have disappeared in grid view. Thery have been replaced with a dark bar along the bottom of the previews. If I toggle using the command u it hide the bar but I still can't see the file name. In list view all the file names are OK.

The dark bar is caused by the option "Show metadata below image".
Check the settings for the metadata overlays in Grid view (basic and expanded) by clicking the little "badge" icon below the Browser and selecting "Edit". Is the filename still enabled in the list? And in a high enough position to have precedence for other metadata tags, if the space does not suffice to show all selected tags?
Regards
Léonie

Selecting all the files in a directory

How would i select all the files in a directory, write the info of the files into a new file, and after the end of each file, make a New Line?

hi zymus,
check this code u will get the solution for ur problem..
import java.io.*;
public class files {
public static void main(String[] args) {
File f = new File("c://");// specify ur directory name here
String[] n = f.list();
System.out.println("ALL FILES.....");
               if (n != null)
                         System.out.println("length = " + n.length);
for (int i = 0; i < n.length; i++) { System.out.println("i = " + n[i]); }
                              String[] n2 = f.list(new myJavaFileFilter());
                              System.out.println("ALL JAVA FILES.....");
                              if (n2 != null)
                                   System.out.println("length = " + n2.length);
for (int i = 0; i < n2.length; i++)
     System.out.println("the files are::::::::: " + n2);
class myJavaFileFilter implements FilenameFilter
public boolean accept(File dir, String name)
     if (name.indexOf(".pdf") > 0)// give the file extension what u want
     return true;
return false;

Upload all the files in a directory

Hi,
I have searched in forum for a solution to my problem (Upload all the files contained in a certain directory) but all I've found is solutions to upload a single file using the bean JspSmartUpload. I had myself used this bean to uploads files to an server, but files choosed by the user with the <input type="file">. What I'm wanting know is different and I can't find a solution to it. I've tried to change the jspsmartupload to do this but I'm having no success..
Anyone can help?
Thanks in advance,
Nuno.

I don't believe there's any support in pure html forms to accomplish this.
The File class has a listFiles() method, that will return an array of all the files in a directory. As this code must run on the client machine, you will need to write an applet to accomplish this. You will also have to worry about the security sandbox, and sign your applet.
To get each file to the server you will need to create a URL object, openConnection on it, set up a multipart form POST to it, and transfer the files, one by one.

How do i merge all the files in a directory into a single file

I need to merge(or move) all the files(all are .txt files) in a directory into a single file?

Thanks Martin, but I was searching for an inbuilt class or a stream like the SequenceInput class that could do this for me.

Printing a list of all the files in a folder

I have a bunch of files in a folder on an external drive. I frequently add and/or delete files from the folder and would like to print out a simple up-to-date list of the names of the files in the folders on a frequent basis. In am using Mac OS 10.6.7.
Anyone have any suggestions.
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Bhubha

From the terminal navigate to the directory where the files are and pipe `ls` with whatever options you want to `lp`,
ls -l | lp
ls | lp

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hi all ,
am new to unix.. i need to remove all the fine in the directory .
how can i remove it.. can any one tel me the command..
i have use rm -f logs(folder name).
but it is not removing any file ..
Thanks
sreedahr

Hi;
What is your OS?Which user you are using for delete process, you have w/r permission for your delete process on files
You can use man rm and can check manuel
Did you see:
http://en.wikipedia.org/wiki/Rm_(Unix)
http://www.cyberciti.biz/faq/howto-linux-unix-delete-remove-file/
http://www.cyberciti.biz/faq/delete-remove-a-directory-unix-command/
Pelase check links
Regard
Helios

What is the command to change the file permission of all the files in a directory recursively?

I know it is chmod -R <permission> Files/directory_name in unix/linux. Tried the same format but not getting the desired output.
Any suggestion about the format of command in Solaris ?
chmod <permission> filename is working but not chmod -R <permission> directory_name doesn't.
Thanks
Shashank.

This command is correct. What is the result of the command if you run it ? What is the command that you use ? And which file system format is it ?

How to read all the files in one directory?

can anyone tell me ?
3x

File.listFiles() is a good start
http://java.sun.com/j2se/1.4.2/docs/api/java/io/File.html
Gil

Read all the files in a folder over and over again

I want to develop an application that reads all the files in a folder, and once its done reading those files it reads all the files again.
The purpose for this application is to read all the files in a folder that are continuously being stored in that folder, so that when a new file is created, that file is also read by the application. I then need to compare the date and time in which the file was created to the actual date and time of the system, so that way I can get the most recent file, and then I will do other operations with this file.
The thing is that I know how to read all the files in a directory, but I don't know how to cycle through those files again, in order to look for the most recent one, and I don't know how to make the comparison of the time stamps, because I need a precision of one second in the system time and the time the file was created.
Can someone please help me?
Thanks in advance!
Solved!
Go to Solution.

I think that I just went the wrong direction.
What I wanted to do in the first place, was to rename and overwrite every new file in a directory with the same name and file extension, so that every new file overwrites the old file. The thing is that the list folder only lists the files the first time and then keeps on telling me there are no files to be read even though there are new files.
What I need now is a way to overwrite the old files with the same name, and keep searching for every new file that is going to be stored in the directory.
I will leave the code that I have right now, so that you can tell me what do I need to modify in order to read every new file that's going to be created in that directory.
Thanks in advance for your help!
Attachments:
Overwrite Files.vi ‏12 KB

Making a list of missing music files

My hard drive crashed and Apple store was able to recover my files from my Time Capsule I thought completely but as I am now trying to listen to music I am missing all kinds of files.
How can I have iTunes make a list of all the files it cannot find so I know what CDs I need to have reloaded? Then delete the blank files it can't find so I don't end up with duplicates?

Thank you! I don't know why I couldn't find this when searching the help documentation.

Pacman to show all the files inside a package that is not installed

Can pacman list out all the files that any packages provides without having that package installed? I learned that pacman -Ql linux does this but the linux packages is installed on my system. Thanks!

I am trying to use it but it doesn't work right with my options. I want to find any package that gives a directory called "russian" but it isn't finding one I know does called "festvox-ru" as I show you:
% pkgfile -svid russian
extra/licq 1.7.1-5 /usr/share/licq/translations/RUSSIAN
community/gnustep-base 1.24.5-2 /usr/lib/GNUstep/Libraries/gnustep-base/Versions/1.24/Resources/Languages/Russian
community/lout 3.40-1 /usr/lib/lout/include/russian
community/nltk-data 2.0-7 /usr/share/nltk_data/corpora/stopwords/russian
community/rawtherapee 1:4.0.11-1 /usr/share/rawtherapee/languages/Russian
Here you see the "russian" directory inside my filesystem with that package:
/usr/share/festival/voices/russian
Last edited by maggie (2013-09-23 14:34:13)

How to read all the files in the directory

Hi,
I want to read all the files from a directory and perform some operations on them. How to read one file at a time from the directory. Is there any operation like the * sign in Dos and Matlab. Is there any such vi which does that.
Thanks,
Nitin

I'm glad I could help, Danny. Using the VI Server technique for recursion is very slow and memory-intensive. I have never seen a need for recursion in LabVIEW that couldn't be solved with a loop and shift registers.
-D
Darren Nattinger, CLA
LabVIEW Artisan and Nugget Penman

Moving the files from one directory to another.

It seems that this would be simple but I am not able to do it easily. I just want to move files from one directory to another directory. I tried the file class renameTo as in the following...
File fFrom = new File("C:\\uhin\\batch\\outgoing");
File fTo = new File("C:\\uhin\\batch\\outgoing\\back");
fFrom.renameTo(fTo);
but this doesn't seem to work. I have tried deleting the directory and then recreating it but this doesn't seem to work as in.
fTo.delete();
fTo.mkdir();
any ideas ?
thanks
kris.

That code you have there tries to rename the directory from C:\uhin\batch\outgoing to C:\uhin\batch\outgoing\back. I'm not sure if you can rename directories in general, but even if you can that particular renaming wouldn't work.
However you didn't want to rename the directory in any case. You need to use a File method called listFiles (if I recall correctly... check the API documentation) which returns an array of File objects, representing all the files in that directory. Then loop through that array, and for each File in it, (1) create a new File object with the new name, and (2) call renameTo() to rename the file.

Is it possible to export a file from Organizer with the list of all the images in an album?

Is it possible to export a file from Organizer with a list of all the images in a certain album? In filling one of my albums I did not save my edited images to the same file... they are spread out a bit.... Now I want them to make a book with them (outside of Elements).

As far as I know, Elements does not have the ability to create lists.
The solution to your problem of making a book outside of Elements is to place all the desired photos in an Album and then select File->Export->As New Files which gives you the ability to make a copy of every photo in the album in a new folder, from which you would create your photobook.

Making a list of all the files in a directory

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