File Modes Usable with : « File Directory « Ruby

File Modes Usable with

File Mode      Properties of the I/O Stream 
r              Read-only. 
r+             Both reading and writing are allowed. 
w              Write-only. A new file is created (or an old one overwritten as if new).
w+             Both reading and writing are allowed, but creates a new file from scratch (or overwrites an old one as if new).
a              Write (in append mode). 
a+             Both reading and writing are allowed (in append mode). The file pointer is placed at the end of the file and writes will make the file longer.
b              Binary file mode (only required on Windows). You can use it in conjunction with any of the other modes listed.


Related examples in the same category

1.Using the append mode to create a program that appends a line of text to a file each time it's run: creates a new object of the class File using the method new.
3.You need to specify the full path for the file unless the file is in the current working directory.