Splitting UNIX Path - Python

path = '/var/log/messages'

res = path.split('/')

print(res)

This Python code initializes a string variable named "path" with the value "/var/log/messages", and then splits the string based on the '/' character using the "split()" method.

The "split()" method divides the original string into substrings at each occurrence of the specified separator character ('/'), and returns a list of the resulting substrings.

The resulting list is assigned to a new variable named "res".

Finally, the code prints the value of the "res" variable using the "print()" function.

So, the output of the given code will be a list of strings, where each element in the list corresponds to a substring between the separator character '/' in the original string. In this case, the output will be:

['', 'var', 'log', 'messages']

The first element of the list is an empty string, which corresponds to the substring before the first occurrence of the separator character. The other elements of the list correspond to the substrings between the separator characters. 

Path Elements

path = '/var/log/messages'

res = path.split('/')

print(res[0])
print(res[1])
print(res[2])
print(res[3])

 Output of the given code will be:

 
var
log
messages

This is because the "res" list contains four elements, corresponding to the substrings between the separator character '/' in the original string.

The first element of the list (at index 0) is an empty string, which corresponds to the substring before the first occurrence of the separator character. The other elements of the list (at indices 1 to 3) correspond to the substrings between the separator characters.

By printing each element of the "res" list using its index, the code prints each substring in the original string as a separate line of output.

Export to txt file

 

path = '/var/log/messages'

res = path.split('/')

file = open('export.txt', 'w')

for x in res:
    file.write(x + '\n')

file.close()

The code then creates a new file named "export.txt" using the "open()" function in write mode ('w').

The code then enters a for loop that iterates over each element of the "res" list. In each iteration, the code writes the current element (a substring of the original "path" string) to the file using the "write()" method of the file object, and then adds a newline character ('\n') to the end of the written string to separate each substring on a new line.

Finally, the code closes the file using the "close()" method.

So, the output of the given code will be a new file named "export.txt" containing the following text:

 
var
log
messages

This is because the for loop iterates over each substring in the "res" list, and writes each substring to a new line in the "export.txt" file, separated by a newline character. Each substring corresponds to a directory name or filename in the original "path" string.