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Python: Alter the owner and the group id of a specified file

Python Operating System Services: Exercise-14 with Solution

Write a Python program to alter the owner and the group id of a specified file.

Sample Solution:

Python Code :

import os
fd = os.open( "/tmp", os.O_RDONLY )
os.fchown( fd, 100, -1)
os.fchown( fd, -1, 50)
print("Changed ownership successfully..")
os.close( fd )

Sample Output:

Traceback (most recent call last):
  File "/tmp/sessions/a24dd3f1f2e68f39/main.py", line 3, in 
    os.fchown( fd, 100, -1)
PermissionError: [Errno 1] Operation not permitted

Python Code Editor:

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Previous: Write a Python program to join one or more path components together and split a given path in directory and file.
Next: Write a Python program to get information about the file pertaining to the file mode. Print the information - ID of device containing file, inode number, protection, number of hard links, user ID of owner, group ID of owner, total size (in bytes), time of last access, time of last modification and time of last status change.

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Python: Tips of the Day

Removes falsey values from a list

Example:

def tips_compact(lst):
  return list(filter(None, lst))
print(tips_compact([0, 1, False, 2, '', 3, 'x', 'r', 35]))

Output:

[1, 2, 3, 'x', 'r', 35]