os.read() - os

             
The method read() reads at most n bytes from file desciptor fd, return a string containing the bytes read. If the end of file referred to by fd has been reached, an empty string is returned.


fd -- This is the file descriptor of the file.
n -- These are n bytes from file descriptor fd.

Syntax

os.read(fd,n)

Example

# !/usr/bin/python

import os, sys
# Open a file
fd = os.open("f1.txt",os.O_RDWR)
	
# Reading text
ret = os.read(fd,12)
print ret

# Close opened file
os.close(fd)
print "Closed the file successfully!!"

Output / Return Value

Let us compile and run the above program, this will print the contents of file f1.txt:


This is test
Closed the file successfully!!

Limitations

Alternatives / See Also

Reference