Josh Nichols technicalpickles

Tabs and Windows

Function	Shortcut
New Tab	`⌘` + `T`
Close Tab or Window	`⌘` + `W` (same as many mac apps)
Go to Tab	`⌘` + `Number Key` (ie: `⌘2` is 2nd tab)
Go to Split Pane by Direction	`⌘` + `Option` + `Arrow Key`
Cycle iTerm Windows	`⌘` + `backtick` (true of all mac apps and works with desktops/mission control)

First, check your current config (example output in homebrew.mxcl.postgresql.plist.xml lower down in this gist):

cat ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist

Most importantly, note the -D /usr/local/var/postgres argument.

Second, shut down your current PostgreSQL.

launchctl unload ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist

Why I chose Fish over Bash for students

I'm currently the lead instructor at Code Platoon and an instructor/developer at the Turing School of Software and Design.

I've been advocating the Fish shell and when the choice is up to me, I choose that for my students. Enough people ask about the decision, particularly in relation to the preinstalled Bash shell, that I figured it's worth laying out my reasoning.

TL;DR

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Reference

Case I: if /boot is not 100% full and apt is working

1. Check the current kernel version

$ uname -r

	## within current branch, squashes all commits that are ahead of master down into one
	## useful if you merged with upstream in the middle of your commits (rebase could get very ugly if this is the case)

	## commit any working changes on branch "mybranchname", then...
	git checkout master
	git checkout -b mybranchname_temp
	git merge --squash mybranchname
	git commit -am "Message describing all squashed commits"
	git branch -m mybranchname mybranchname_unsquashed
	git branch -m mybranchname

	== Rules ==
	On Infrastructure
	-----------------
	There is one system, not a collection of systems.
	The desired state of the system should be a known quantity.
	The "known quantity" must be machine parseable.
	The actual state of the system must self-correct to the desired state.
	The only authoritative source for the actual state of the system is the system.
	The entire system must be deployable using source media and text files.

	require "midi"
	require "eventmachine"
	# prompt the user to select an input and output


	EventMachine.run do
	@input = UniMIDI::Input.gets
	@output = UniMIDI::Output.gets

	EventMachine.set_timer_quantum(10);

	# npm using https for git
	git config --global url."https://github.com/".insteadOf [email protected]:
	git config --global url."https://".insteadOf git://

	# npm using git for https
	git config --global url."[email protected]:".insteadOf https://github.com/
	git config --global url."git://".insteadOf https://