yeahq

//http://superuser.com/questions/203707/how-to-uninstall-homebrew-osx-package-manager
Here's how they recommend doing it:

cd `brew --prefix`
rm -rf Cellar
brew prune
rm -rf Library .git .gitignore bin/brew README.md share/man/man1/brew
rm -rf ~/Library/Caches/Homebrew

This should also revert your /usr/local folder to its pre-Homebrew days. See the Homebrew installation wiki for more information.

yeahq

// From: http://iphoneincubator.com/blog/windows-views/how-to-inject-javascript-functions-into-a-uiwebview
NSString *title = [webView stringByEvaluatingJavaScriptFromString:@"document.title"]; 

[webView stringByEvaluatingJavaScriptFromString:@"var script = document.createElement('script');"  
                         "script.type = 'text/javascript';"  
                         "script.text = \"function myFunction() { "  
                            "var field = document.getElementById('field_3');"  
                            "field.value='Calling function - OK';"  
                         "}\";"  
                         "document.getElementsByTagName('head')[0].appendChild(script);"];  

yeahq

//----- LIST ALL FILES -----
NSLog(@"LISTING ALL FILES FOUND");

int Count;
NSString *path;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
path = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"SomeDirectoryName"];
NSArray *directoryContent = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:path error:NULL];
for (Count = 0; Count < (int)[directoryContent count]; Count++)
{

yeahq

[[NSFileManager defaultManager] moveItemAtPath:MySourcePath toPath:MyDestPath error:nil];

yeahq

 NSString *path;
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    path = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"My Directory"];
    path = [path stringByAppendingPathComponent:@"My Filename"];

    if ([[NSFileManager defaultManager] fileExistsAtPath:path])
    {
        //File exists
        NSData *file1 = [[NSData alloc] initWithContentsOfFile:path];
        if (file1)

yeahq

NSData *file;
file = ...
NSString *path;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
path = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"SomeDirectoryName"];
path = [path stringByAppendingPathComponent:@"SomeFileName"];

[[NSFileManager defaultManager] createFileAtPath:path
contents:FileData
attributes:nil];

yeahq

NSString *path;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
path = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"SomeDirectoryName"];
NSError *error;
if (![[NSFileManager defaultManager] fileExistsAtPath:path])	//Does directory already exist?
{
    if (![[NSFileManager defaultManager] createDirectoryAtPath:path
            withIntermediateDirectories:NO
            attributes:nil
            error:&error])

yeahq

NSString *path;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
path = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"SomeDirectoryName"];
NSError *error;	

if ([[NSFileManager defaultManager] fileExistsAtPath:path])	//Does directory exist?
{
    if (![[NSFileManager defaultManager] removeItemAtPath:path error:&error])	//Delete it
    {
        NSLog(@"Delete directory error: %@", error);

yeahq

NSString *path;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
path = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"SomeDirectory"];
path = [path stringByAppendingPathComponent:@"SomeFileName"];
NSError *error;
if ([[NSFileManager defaultManager] fileExistsAtPath:path])		//Does file exist?
{
    if (![[NSFileManager defaultManager] removeItemAtPath:path error:&error])	//Delete it
    {
        NSLog(@"Delete file error: %@", error);

yeahq

NSString *path;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
path = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"SomeDirectory"];
path = [path stringByAppendingPathComponent:@"SomeFileName"];
if ([[NSFileManager defaultManager] fileExistsAtPath:path])
{