Question

How do you move the file pointer to a specific position in a file using the seek() function?



seek(0)


seek(1)


seek(offset)


seek(position)

Answer 1

seek(offset)

The argument to seek() is the offset (position) you want the file pointer moved to. Example in Python:

- f.seek(0) # move to start of file
- f.seek(10) # move to byte 10 from the start
- f.seek(-5, 2) # move to 5 bytes before end (whence=2)

(Under the hood some APIs use fseek(file, offset, whence) or seek(offset, whence).)