đ SYS 320 - tconklin-champlain/Tech-Journal GitHub Wiki
đĄ To open Jupyter Lab open cmd and type
jupyter lab
and it will auto run the local server
Week 1
đĄ Start jupyter labs terminal with Admin privledges or it won't work in root directory.
Tips:
- Comments are a must in code
- Start with test files or small files
- Name your variables properly nothing random or jokes
đĄ What is really useful in Jupyter Lab is you can code in small bites
# Create and interface to search through syslog files
# Open a file
with open('../logs/smallSyslog.log') as f:
# read in the file and save it to a variable
contents = f.readlines()
print(contents)
Most of what we do is just looking for keywords in logs so you could change "failure" with anything to search for anf it will print!
keywords = ['failure','session opened for user','exited abnormally']
# Loop through the list returned. Each element is a line fromt thee smallSyslog file
for line in contents:
# Loops through the keywords
for eachKeyword in keywords:
# If the 'line' contains the keyword then it will print
if eachKeyword in line:
print(line)
Using regular expression will help this program a lot
Editing the keywords
keywords = ['sshd\(pam_unix\)\[[0-9]{3,8}\]: authentication failure;','session opened for user.*','exited abnormally']
Editing the loop
# Loop through the list returned. Each element is a line fromt thee smallSyslog file
for line in contents:
# Loops through the keywords
for eachKeyword in keywords:
# Searches and returns results using a regular expression search
x = re.findall(r''+eachKeyword+'', line)
print(x)
Refining the code
- Create a new python file
- Change our code into a function / module
syslogCheck.py
# Create and interface to search through syslog files
import re
def _syslog(filename,listOfKeywords):
# Open a file
with open(filename) as f:
# read in the file and save it to a variable
contents = f.readlines()
# Lists to store the results
results = []
# Loop through the list returned. Each element is a line fromt thee smallSyslog file
for line in contents:
# Loops through the keywords
for eachKeyword in listOfKeywords:
# If the 'line' contains the keyword then it will print
#if eachKeyword in line:
# Searches and returns results using a regular expression search
x = re.findall(r''+eachKeyword+'', line)
# print(x)
for found in x:
# Append the returned keywords to the results list
results.append(x)
return results
- Import the modules into new program!
đĄ Whenever you have an issue try printing the results so you can easily fix the problem!
Common Error
Solution
You need to make sure to import the module!!!
What I have learned
- Create modules using unspecific values to copy and paste it to create others easily
- You can use Markdown in Jupyter Lab which is amazing
Powershell
đĄ Comment multiple lines CMD-K + CMD-C