CT320: Network and System Administration
Fall 2018
Python
The purpose of this assignment is to learn how write basic scripts using the Python programming language.
math.sqrt function: pydoc3 math.sqrt
Here is a program named “walk“. Your TA will discuss it.
#! /usr/bin/python3
import os
for dirpath, directories, files in os.walk("."):
for f in files:
fpath = dirpath + '/' + f
st = os.stat(fpath)
mode = st.st_mode & 0o777
print("%o" % mode, fpath)
import do?
os.walk return?
0o777 mean?
% operator do?
Copy & paste the script, above, to your system (beware of tabs) and make sure that it runs properly.
Add code to ignore files that begin with a dot, e.g., .bashrc.
ls-like outputAdd code to print the file protection bits in the style
of ls -l, e.g., -rwxr-xr--
You’re concerned about others reading your secret files. Add code to complain, to standard error, for each file that is publicly readable, writable, or executable.
Add code to not complain (see above) if the file .public exists
in the same directory as the file that is publicly
readable/writable/executable.
Hey, we’re only listing plain files, not directories! Modify your program to also list directories.
Show the modification time for the files.
Show your work to the TA.
