stonecharioteer

No Process is an Island

by a humble sysadmin

No process is an island,
Running all alone;
Every process is a child of another,
A part of the tree.

If a thread is killed in silence,
The system is the less,

stonecharioteer

import sys

def cli_function():
    """This is a python function that offers a CLI or does some long running
    task that you might want to interrupt"""
  
  
if __name__ == "__main__":
    try:
        cli_function()

stonecharioteer

Implementing a jq REPL with fzf

Update: I created jq-zsh-plugin that does this.

One of my favourite tools of my trade is jq. It essentially enables you to process json streams with the same power that sed, awk and grep provide you with for editing line-based formats (csv, tsv, etc.).

Another one of my favourite tools is fzf.

stonecharioteer

#!/bin/bash

# Clean all exited containers
docker ps -qaf status=exited | xargs docker rm

# Remove all unused images
docker images -f dangling=true -q | xargs docker rmi

stonecharioteer

#!/bin/bash 

iterations=10

# -----------------------------------------------------------------------------
# Create array of results

declare -a results

for i in $(seq 1 $iterations);

stonecharioteer

"""Examples to show how Python stores the closure metadata in a decorator.

Know that this information isn't always just attached to a decorator. It could
also be passed around with regular functions, if the conditions match.

That is, if a variable from a higher scope is _referenced_ from a variable in
another scope, which is passed around, then, a __closure__ meta variable is
attached to the object that is passed around, where it has a store of what its
'closure' is.

stonecharioteer

git_current_branch () {
        local ref
        ref=$(command git symbolic-ref --quiet HEAD 2> /dev/null) 
        local ret=$? 
        if [[ $ret != 0 ]]
        then
                [[ $ret == 128 ]] && return
                ref=$(command git rev-parse --short HEAD 2> /dev/null)  || return
        fi
        echo ${ref#refs/heads/}

stonecharioteer

"""
This module provides a simple WSGI profiler middleware for finding 
bottlenecks in web application. It uses the profile or cProfile 
module to do the profiling and writes the stats to the stream provided

To use, run `flask_profiler.py` instead of `app.py`

see: http://werkzeug.pocoo.org/docs/0.9/contrib/profiler/
and: http://blog.miguelgrinberg.com/post/the-flask-mega-tutorial-part-xvi-debugging-testing-and-profiling
"""

stonecharioteer

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""This is a rot-13 encoded puzzle. Interestingly, this is how the `this` module is implemented 
in Python.

Did you know that the `this` module breaks the Zen of Python in almost *every* possible way?

Run this on Python Anywhere and you can see the output on your phone. 
Here's a `link <https://www.pythonanywhere.com/user/stonecharioteer/shares/61f863777d13449599ecab5bf11ff34d/>`_.

stonecharioteer

s = """Jrypbzr gb gur svefg Ivfn OnatClcref zrrghc rirelbar!

Guvf vf gur svefg gvzr jr'ir vaivgrq gur Onatnyber Clguba zrrghc pbzzhavgl gb bhe bssvpr, fb rirelbar gnxr n punapr gb argjbex.

Funer lbhe xabjyrqtr, lbhe gvcf naq lbhe rkcregvfr bs Clguba.

Nobir nyy, unir sha!!

Gb bhe ivfvgbef, Ivfn vf uvevat. Ernpu bhg gb hf naq funer lbhe erfhzrf."""