Theo Paris theoparis

CSS units

Recommendations of unit types per media type:

Media	Recommended	Occasional use	Infrequent use	Not recommended
Screen	em, rem, %	px	ch, ex, vw, vh, vmin, vmax	cm, mm, in, pt, pc
Print	em, rem, %	cm, mm, in, pt, pc	ch, ex	px, vw, vh, vmin, vmax

Relative units

How to mount a qcow2 disk image

This is a quick guide to mounting a qcow2 disk images on your host server. This is useful to reset passwords, edit files, or recover something without the virtual machine running.

Step 1 - Enable NBD on the Host

modprobe nbd max_part=8

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

-E: will describe the underlaying queries of the \ commands (cool for learning!)
-l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)

mruby.h

Basic header of mruby. It includes mrbconf.h, mruby/value.h, mruby/version.h internally.

`mrb_state` management

`mrb_open`

mrb_state*

NERDTree

o.......Open files, directories and bookmarks....................|NERDTree-o|
go......Open selected file, but leave cursor in the NERDTree.....|NERDTree-go|
t.......Open selected node/bookmark in a new tab.................|NERDTree-t|
T.......Same as 't' but keep the focus on the current tab........|NERDTree-T|
i.......Open selected file in a split window.....................|NERDTree-i|
gi......Same as i, but leave the cursor on the NERDTree..........|NERDTree-gi|
s.......Open selected file in a new vsplit.......................|NERDTree-s|
gs......Same as s, but leave the cursor on the NERDTree..........|NERDTree-gs|

O.......Recursively open the selected directory..................|NERDTree-O|

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

	"""ssh-copy-id for Windows.

	Example usage: python ssh-copy-id.py ceilfors@my-remote-machine

	This script is dependent on msysgit by default as it requires scp and ssh.
	For convenience you can also try that comes http://bliker.github.io/cmder/.
	"""

	import argparse, os
	from subprocess import call

	package com.comphenix.example;

	import java.io.ByteArrayInputStream;
	import java.io.ByteArrayOutputStream;
	import java.io.DataInput;
	import java.io.DataInputStream;
	import java.io.DataOutput;
	import java.io.DataOutputStream;
	import java.lang.reflect.Method;

	package com.comphenix.example;

	import java.io.ByteArrayInputStream;
	import java.io.ByteArrayOutputStream;
	import java.io.IOException;

	import org.bukkit.Bukkit;
	import org.bukkit.inventory.Inventory;
	import org.bukkit.inventory.ItemStack;
	import org.bukkit.util.io.BukkitObjectInputStream;