Python Tutorial ( PDFDrive )

os.read(fd,n)
Parameters
• fd -- This is the file descriptor of the file.
• n -- These are n bytes from file descriptor fd.
Return Value
This method returns a string containing the bytes read.
Example
The following example shows the usage of read() method.
# !/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!!"
Let us compile and run the above program, this will print the contents of file f1.txt:
This is test
Closed the file successfully!!
os.readlink(path)
Description
The method readlink() returns a string representing the path to which the symbolic link points. It may return an
absolute or relative pathname.
Syntax
Following is the syntax for readlink() method:
os.readlink(path)
Parameters
• path -- This is the path or symblic link for which we are going to find source of the link.
Return Value
This method return a string representing the path to which the symbolic link points.
Example
The following example shows the usage of readlink() method.
TUTORIALS POINT
Simply Easy Learning