Can we do File Systems in Objective-C ?

Language: Objective-C
Check File Exists
Seek by Offset in File
Read at Byte Offset
Write at Byte Offset
Close Opened File
Create Temporary File
Create Temporary Directory
Copy Folder Recursively
Get File Extension
Get Filename from Path
List Directory Files
List Directory Files by Pattern
Get File Modified Time
Get File Permissions
Set File Permissions
Set Ownership of File
Count Lines in File
Count Words in File
Check if Path is File or Directory