Python os.fstatvfs() Method with example

Hello dear readers! Welcome back to another section of our tutorial on Python. In this tutorial guide, we are going to be studying about the Os fstatvfs() method.

The Python os fstatvfs() method returns data about the file system containing the file associated with the file descriptor fd. The following below is the list of structure that is returned by fstatvfs() Method -

• f_bsize - File system block size

• f_frsize - fragment size

• f_blocks - the size of fs in f_frsize units

• f_bfree - free blocks

• f_bavail - free blocks for non-root

• f_files - inodes

• f_ffree - free inodes

• f_favail - free inodes for non-root

• f_fsid - file system ID

• f_flag - mount flags.

• f_namemax - the maximum filename length

Syntax

The following below is the syntax for Python Os fstatvfs() method -

os.fstatvfs( fd )

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Parameter Details

• fd - File descriptor for which system information is to be returned.

Return Value

This returns information about a file associated with the fd.

Example

The following below is a simple example -

#!/usr/bin/python

import os, sys

# Open a file
fd = os.open( "foo.txt", os.O_RDWR|os.O_CREAT )

# Now get  the touple
info = os.fstatvfs(fd)

print "File Info :", info

# Now get maximum filename length
print "Maximum filename length :%d" % info.f_namemax:

# Now get free blocks
print "Free blocks :%d" % info.f_bfree

# Close opened file
os.close( fd)

Output

When the above code is executed, it will produce the following result -

File Info : (4096, 4096, 2621440L, 1113266L, 1113266L, 
             8929602L, 8764252L, 8764252L, 0, 255)
Maximum filename length :255
Free blocks :1113266

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Alright guys! This is where we are rounding up for this tutorial post. In our next tutorial, we are going to be studying about the Python OS fsync() Method.

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