A resource for storing information which is available for a computer program. Computer files can be considered as the modern counterpart of paper documents.

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28
votes
4answers
31k views

Why are dot underscore ._ files created, and how can I avoid them?

I am using different operating systems on different machines on different locations. I am using a USB flash disk to keep my files (source codes etc.). I am new to Mac OS X and now I realize there are ...
24
votes
2answers
657 views

How did this ominous file end up in my Application Support folder?

Deleting this file will break the whole internets, for the sake of our children don't do it!. The above quotation is the content of a text file called STR8369805638PUB6932583035105 that I found ...
9
votes
2answers
10k views

How do I create a symbolic link to a directory with a space in it?

I was trying to create a symbolic link using the following command: ln -s "~/Foo Bar/" Foo ... but it didn't work (i.e. when I go into finder and try double clicking it, it says that it's pointing ...
8
votes
1answer
5k views

Adding tags to files in OS X: How to use, where are tags stored, and will they work on a network?

I've heard it is possible to add tags to a file's meta data in OS X, and have Spotlight search through such tags. In a nutshell, how would one access this feature in Finder – not Spotlight ...
7
votes
1answer
175 views

Why are Mac files able to have multiple owners?

Regarding Unix file permissions, which Macs use, why are Mac files in particular able to have multiple owners? For instance, you can view the "Get info" panel of a file, and under the Permissions ...
7
votes
2answers
585 views

What does Apple want for the WWDC Scholarship application uploads?

I am trying to submit my app for the 2013 Student Scholarship - form here (Dev program needed). However, I am confused about what it is, exactly, that they want: Here's a screenshot of the section ...
6
votes
3answers
6k views

Finder takes long time to load some folders

When opening some folders, the Finder takes a long time (30-60 seconds) to load all the files in it. Specifically, these folders typically contain 10-50 PHP files (which are text files), each about 10 ...
6
votes
1answer
659 views

Resume file move after Finder crash (unmoved items appear washed out)

I was moving a large amount of data to an external drive. The Finder crashed (or appeared to restart) in the middle of the operation. Now the files appear as "washed out" in the external drive ...
5
votes
2answers
236 views

How are paths to files and folders constructed in OS X?

I need to indicate a right file path to read a .csv file into R on OS X, but how can I find where the file is stored? Looking at Excel files, the file path starts at users/…, but there is no ...
5
votes
2answers
168 views

How to Create New File in Selected Folder Using LaunchBar?

Using Launchbar, I'd like to be able to do the following: Navigate around by normal means in Launchbar > Once I'm in desired folder, I'd like to be able to run a command/action that asks me to enter ...
5
votes
1answer
12k views

What format and encoding does iPhone save video clips in?

Using the default Photo/Video application. Tried to find any info regarding this on Apple's web site with no success. Does anyone have the specs on this?
4
votes
2answers
4k views

How can I change the default save location of Office for Mac?

I have Office for Mac 2011 and unlike Office PC, I can't find how to change the location where my files are to be saved. The default position doesn't suit my needs and I spend a lot of time ...
4
votes
2answers
249 views

Search file duplicates in OSX by hash

I am looking for a way to search for a determinate file in OSX (Maverick but more generally OSX). In particular I would like to do the following: given a File_001 I'd like to search if in the ...
4
votes
2answers
448 views

With FileVault enabled, do I need to overwrite my hard drive with 0's before getting rid of it?

When I give up my laptop I like to securely delete the hard drive. I would assume that since it's full disk encrypted using file vault that I should be able to just delete the real key for boot ...
4
votes
1answer
247 views

Save a file with the extension I want

In Chrome, when I download a file with an extension that the OS doesn't recognize (in this case, .erb, the dialog defaults to appending .txt to the end of it. I highlight the .txt and delete it before ...
3
votes
6answers
1k views

Is it safe to delete ~Library/Caches?

Is it safe to delete the file Caches, in the Library of the Mac OS X Hard Drive? It's a pretty big file, 3.56 GB, Caches reminds me of logs i don't need or browser cookies. Is it safe to delete the ...
3
votes
1answer
32 views

Where VIM keep its recordings?

I was trying to use VIM and it kept blinking "recording" all the time. Now I know that it means VIM was recording what I was typing. Where does it keep these recordings? I would like to delete these.
3
votes
4answers
129 views

Mass change a portion of a file name?

I have a whole bunch of files named as following (example): ADVANTE 18''8.0 PCD5'114.3 ET45 CB73.1.jpg ADVANTE 18x8.0 PCD6139.7 ET20 CB110.2.jpg ADVANTE 'A MI576B 20''8.5 PCD6'139.7 ET25 CB110.2 ...
3
votes
2answers
903 views

In Lion Spotlight search results, how do I find which folder contains a specific file?

I recently upgraded to Lion. I also installed Microsoft Office 2011. In Spotlight, how do I now find in which folder a document is? It used to be that hovering the mouse over the doc would show the ...
3
votes
1answer
317 views

How to use Finder to find all files that do not match a certain criteria?

How can I use Finder's search feature to find all files that do not match a certain criteria? For instance, all files that don't end in ".txt" in the current folder.
3
votes
2answers
742 views

file transfer from Tiger (10.4.11) to Mountain Lion (10.8)

Will Migration Assistant let me transfer my files from my old Mac running Tiger 10.4.11 to Mountain Lion? I've read that it does not support moving files from 10.4 to Mountain Lion and didn't know if ...
3
votes
2answers
2k views

Deleting files doesn't free up space [duplicate]

I moved away (to an external drive) about 30 GB of files from a drive (startup disk) that had 60 GB of free space. After the move it still shows only 60 GB of free space, not 90, as I would expect. ...
3
votes
1answer
136 views

Deleting undated files from Time Machine

I just bought a new MacBook Pro with Lion. I restored my files and apps from the MacBook with Snow Leopard, etc., from Time Machine. All seemed to have uploaded correctly, but after using several ...
2
votes
1answer
47 views

Size in bytes is significantly less ( half the size) then size in MB in get info window

In the get info window it says 387,037,139 bytes which is 387 MB whereas the size on disk is 716.9MB which is 716,900,000 bytes. du -sh paramgen result (in MiB) 684M paramgen Why is there such ...
2
votes
1answer
342 views

Space in Volume Name; can you remove?

I have two drives in my machine: An SSD with the OS on it a HDD with all my data. I have a symlink on the SSD for my home directory on the HDD so /Volumes/SSD/Users/Ross/ points to ...
2
votes
2answers
29 views

set custom file extension to open with specified program

I want to have all files with an extension of .fw.png to open in Fireworks (not necessarily .png files though). Is there a way to do this in Terminal?
2
votes
1answer
216 views

Can the Date Created metadata be changed after the fact on OS X?

I have a movie file. It was taken back in October but the date created is from last week. How can I change the date created information in the file?
2
votes
1answer
936 views

How do I batch set the files “date modified” to the “date created”?

I have a folder with a bunch of photos taken by two different cameras, with one camera having been set to the wrong date. I managed to correct the EXIF date using Picasa (see photo.stackexchange), but ...
2
votes
1answer
322 views

Force a file to overwrite instead of appending

I've got an application that won't overwrite a file with the same filename. It will only append the filename with a 'space 1'. If I write a file more than once I get something like this: ...
2
votes
2answers
120 views

“New File” feature for OS X? [duplicate]

back in the day (2006-07), before the Intel Mac days, I used an application called NuFile which let me create a "new file" like Windows on the fly. Ever since i've been searching for alternative but ...
2
votes
2answers
217 views

Setting “open with” default app forever

There is a nice option in MacOS X that you can right-click on a particular file, select "open with", then select the app that you want to use to open the file type and check the mark "always open ...
2
votes
2answers
56 views

What application is using a particular file?

I have some FileMaker databases being served for dev purposes and I keep bumping into occurrences where the database/file is locked and I can't make changes to it. How can I determine what ...
2
votes
1answer
105 views

Find files created by program

Is there an app out there that lets you see what files were created by a program? Basically I need to figure out where a lock file for a Java program is.
2
votes
1answer
32 views

Open files with same extension in different directories with different applications

Say I have mp3 music in directory 'A' which I want to open with iTunes. And I have some more mp3 files in directory 'B' which I want to open with VLC player. How can I set the default 'application' ...
2
votes
1answer
30 views

Automator action to upload a file/folder

Is there an Automator action that can upload a file/folder? Specifically, I want to upload a folder automatically at a set date/time. I know I can create a "Calendar Alarm" action that'll trigger ...
2
votes
1answer
90 views

Is it safe to delete dSYM files on Mac OS X?

I've got a few large dSYM files on my machine, installed by the Qt Framework. As I understand they are used for debugging, however I don't actually need to debug the library itself. Is it safe to ...
2
votes
3answers
234 views

How can I disassociate a single app (e.g., XCode) from all file types it's mapped to? [duplicate]

Possible Duplicate: How to Change File Type Associations? Every time I get a machine that I install XCode on, it associates itself with all kinds of filetypes. E.g., .xml, .rb, even .java! ...
2
votes
1answer
454 views

Find original filename after Data Rescue recovery

Recently, I lost 1,7TB on videofiles on my external hard drive. A terrible loss since it took me many evenings categorising all this data. With a deep-scan with DataRescue 3, I was able to recover ...
2
votes
1answer
359 views

Difference between saving and exporting

I have read several questions (here and elsewhere) that look for applications that can save in a format instead of export in a format. What is the difference between saving in a format, and exporting ...
2
votes
1answer
315 views

Copy contents of a smart folder to a new folder in Mountain Lion

I admit that my music collection is a royal mess. This is the result of merging many sources of music (external drive, old iPod sync, iTunes purchases, etc) into my iTunes account. iTunes Match has ...
2
votes
1answer
220 views

Teach Safari to ignore case if necessary when opening local html file

I'm using Safari to read the HTML documentation that came with something. Many of the .html files contain links to others amongst themselves where the case of the URL does not match the name of the ...
2
votes
0answers
364 views

Double-clicking file from Finder does not open it in application [closed]

I have installed an application that is associated with a particular file type. When I double click a file of that type in Finder, the application starts, but does not open the file that was clicked. ...
2
votes
1answer
99 views

Repeated applications under Open With Menu [duplicate]

Possible Duplicate: Why does my Mac’s list of “Open with” applications start listing the apps twice and sometimes three times? When I right-click on a file and select Open With option, I ...
2
votes
0answers
172 views

What determines a local file's MIME type?

When a local file is opened in Safari or -- more important to my situation -- a custom application that uses a WebView for display, what decides on the MIME type to associate with the resulting file ...
1
vote
2answers
326 views

Force simple UNIX path names for optimal us of command line apps?

I want to force myself to use folder/file names without spaces etc. so I'm 100% certain I can open and run them from the command line. Some terminal apps which I use frequently hava a hard time ...
1
vote
2answers
250 views

Hiding emacs backup files in Finder

I would like to find a way to hide all the *~ files in Finder, which are used as backup files by Emacs. Is there a general approach to make Finder hide all the files with their names matching certain ...
1
vote
2answers
225 views

AppleScript for moving completed downloads to other folders

I'm looking to write a script that will move all file in the downloads folder (once fully downloaded) to different folders on the hard drive and external hard drive. Where can I learn more about how ...
1
vote
2answers
85 views

How can I edit a file without altering its modif date?

How can I edit a file without altering its modification date ? In command line. Is vi able to that ?
1
vote
1answer
581 views

Reduce image file size to certain size

I have some tiff files of (scanned docs) which are too large than required. I tried to export with Preview while applying filter "Reduce File Size". The new file came out to be quite small 36KB ...
1
vote
3answers
615 views

Copy new files only - is this possible? Basically want to merge two folders

I have a folder on Drive 1 called Music, and it is 100GB. I have a folder on Drive 2 called Music, and it is 116GB. It's the most updated version. How do I copy the Music folder from Drive 2 to Drive ...