| #!/bin/bash | |
| profile=your_creds_profile | |
| output=your_output_fomat['text' or 'json' ...] | |
| instance_id=i-454645644744 #yourinstance_id here | |
| cmd='aws ec2 describe-instances --instance-ids $instance_id --profile $profile' | |
| aws ec2 stop-instances --instance-ids $instance_id --profile zeus | |
| COUNTER=0 | |
| while [ $COUNTER -lt 60 ]; do |
| Preety print xml and json in vim | |
| XML: | |
| 1. Install xmllint : `sudo apt-get install libxml2-utils` | |
| 2. Use xmllint to format the xml | |
| 3. Add this to vimrc: `nmap =x :%!xmllint % --format<CR>` | |
| JSON: |
| #!/bin/bash | |
| #Opening idle in virtualenv | |
| LOCAL_BIN_HOME="$HOME/.local/bin" | |
| mkdir -p $LOCAL_BIN_HOME | |
| echo "python -m idlelib.idle" > $LOCAL_BIN_HOME/vidle | |
| chmod +x $LOCAL_BIN_HOME/vidle | |
| #Add the local bin path to PATH | |
| export PATH=$PATH:$LOCAL_BIN_HOME | |
| #Execute $ vidle |
| # Nginx | |
| NGUSERNAME [a-zA-Z\.\@\-\+_%]+ | |
| NGUSER %{NGUSERNAME} | |
| NGINXACCESS %{IPORHOST:clientip} %{NGUSER:ident} %{NGUSER:auth} \[%{HTTPDATE:timestamp}\] "%{WORD:verb} %{URIPATHPARAM:request} HTTP/%{NUMBER:httpversion}" %{NUMBER:response} (?:%{NUMBER:bytes}|-) (?:"(?:%{URI:referrer}|-)"|%{QS:referrer}) %{QS:agent} | |
| # Nginx error formats | |
| NGINXERROR0 (?<timestamp>\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2}) \[%{DATA:err_severity}\] (%{NUMBER:pid:int}#%{NUMBER}: \*%{NUMBER}|\*%{NUMBER}) %{DATA:err_message}(?:, client: (?<client_ip>%{IP}|%{HOSTNAME}))(?:, server: %{IPORHOST:server})(?:, request: %{QS:request})?(?:, host: %{QS:clientip})?(?:, referrer: \"%{URI:referrer}) | |
| NGINXERROR1 %{DATESTAMP:timestamp} \[%{DATA:err_severity}\] %{GREEDYDATA:err_message} |
| #!/bin/bash | |
| ## | |
| # the handle_argument function receives all the non-option argument or non-flag argument | |
| ## | |
| handle_argument() { | |
| # the first argumeent without any flag | |
| echo " Argument is : $1 " | |
| } |
| # definations.py | |
| import os | |
| import configparser | |
| # Environment defination variable, this environment variable will use used to pick config file | |
| ENV = os.environ["ENVIRONMENT"] | |
| # settings | |
| settings = configparser.ConfigParser() | |
| BASEDIR = os.path.dirname(os.path.realpath(__file__)) |
A Python module is simply a Python source file, which can expose classes, functions and global variables.
When imported from another Python source file, the file name is treated as a namespace.
namespace.Globalvar
A Python package is simply a directory of Python module(s).
| # `ref: https://fangpenlin.com/posts/2012/08/26/good-logging-practice-in-python/ | |
| import logging | |
| logger = logging.getLogger(__name__) | |
| logger.setLevel(logging.INFO) | |
| # create a file handler | |
| handler = logging.FileHandler('hello.log') |
| import sys | |
| import logging | |
| # We don't need to use print statement, using logger removes many python compatibilit | |
| # and need to modify code later, we can just configure logger and rest code remains as it is. # | |
| # logging.basicConfig(stream=sys.stdout, level=logging.INFO) | |
| logger = logging.getLogger("LOGGER_NAME") | |
| logger.setLevel(logging.DEBUG) | |
| ch = logging.StreamHandler(sys.stdout) |
| #!/bin/bin/env python | |
| import subprocess | |
| #Exeternal Command with args | |
| DPKG = ['dpkg', '-l'] | |
| # Execute the command | |
| dpkg_process = subprocess.Popen(DPKG, stdout=subprocess.PIPE, stderr=subprocess.PIPE) | |
| # Wait till process to exit | |
| out, error = dpkg_process.communicate() |
