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Default shortcuts

Scrolling

Action	Shortcut
Scroll line up	ctrl+shift+up (also ⌥+⌘+⇞ and ⌘+↑ on macOS)
Scroll line down	ctrl+shift+down (also ⌥+⌘+⇟ and ⌘+↓ on macOS)
Scroll page up	ctrl+shift+page_up (also ⌘+⇞ on macOS)
Scroll page down	ctrl+shift+page_down (also ⌘+⇟ on macOS)

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Conventional Commit Messages

See how a minor change to your commit message style can make a difference. Examples

Have a look at CLI util git-conventional-commits to ensure this conventions and generate changelogs

Commit Formats

Default

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Nginx Basics for Ubuntu

Please see http://wiki.nginx.org/Main for more information. See http://arstechnica.com/gadgets/2012/11/how-to-set-up-a-safe-and-secure-web-server/ for a tutorial on how to install Nginx.

Installation

To install, you can install the version which is in the standard Ubuntu repositories but it is normally quite old and will not have the latest security patches. The best way is to update the repositories first:

apt-get update
apt-get install python-software-properties

apt-get upgrade

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Postgres Cheatsheet

This is a collection of the most common commands I run while administering Postgres databases. The variables shown between the open and closed tags, "<" and ">", should be replaced with a name you choose. Postgres has multiple shortcut functions, starting with a forward slash, "". Any SQL command that is not a shortcut, must end with a semicolon, ";". You can use the keyboard UP and DOWN keys to scroll the history of previous commands you've run.

Setup

installation, Ubuntu

http://www.postgresql.org/download/linux/ubuntu/ https://help.ubuntu.com/community/PostgreSQL

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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)

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tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

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cd "C:%HOMEPATH%\.IntelliJIdea*\config"
rmdir "eval" /s /q
del "options\other.xml"
reg delete "HKEY_CURRENT_USER\Software\JavaSoft\Prefs\jetbrains\idea" /f

:: This will work for idea 2018.3 and later
::
:: It is Highly Advised to Purchase the JetBrain Softwares
:: This is only for the case You just want to Extend the 
:: Trial Period and Evaluate the IDE for some more Time

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tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name: