This program takes no command-line argument and output /proc/mount file.
Run the program like:
$ python mount.py
A link to the source code.
line 1
Sha-Bang
line 2-3
Imports modules
line 5-45
function 'main'
line 6-8
docstring
line 9
assign a path to a variable called 'mount_file'
line 10
check if the file is regular file and exists
line 11
try block to capture exception when open the file
line 16-18
read lines from the file and store them into a list called 'lines'. And close the file object
line 20-24
find and remove a line contains 'rootfs' string
line 26-41
format each lines to match with 'mount' command output
line 47-48
check top-level script environment and return exit status