Raf zfael

To keep the changes from the commit you want to undo

$ git reset --soft HEAD^

To destroy the changes from the commit you want to undo

$ git reset --hard HEAD^

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A few show tricks to find slow queries in mongodb

Enable profiling

First, you have to enable profiling

> db.setProfilingLevel(1)

Now let it run for a while. It collects the slow queries ( > 100ms) into a capped collections, so queries go in and if it's full, old queries go out, so don't be surprised that it's a moving target...

	#!/bin/bash

	# get all running docker container names
	containers=$(sudo docker ps \| awk '{if(NR>1) print $NF}')
	host=$(hostname)

	# loop through all containers
	for container in $containers
	do
	echo "Container: $container"

	# SYNTAX:

	var pattern = new RegExp(pattern, attributes); # attributes: g (global); i (case-sensitive); m (multiline matches)
	var pattern = /pattern/attributes; # same as above


	# BRACKETS:

	[...]: Any one character between the brackets.
	[^...]: Any one character not between the brackets.