Brew Git Misc Python Tmux Vim

This is my refcard. There are many like it, but this one is mine.

Brew

Use brew for command line applications, brew cask for GUI apps.

Command Description
brew doctor Check brew configuration
brew update Update brew repositories
brew upgrade Upgrade installed formulae
brew list [--versions] List installed software [with version information]
brew deps <formula> List dependencies for <formula>
brew deps --installed --tree Show dependency tree for installed formulae
brew uses --installed <formula> Check installed formulae that depend on <formula>
brew cleanup -[n]s Clear cache, remove [dry run] old version from cellar

Git

Official documentation at git-scm. Branch housekeeping at Railsware Blog.

Command OMZ Description
git status gst Show status
git log --oneline --decorate --color --abbrev-commit --all --graph glola Show pretty commit log
git commit -v gc Commit verbose
git commit -a[m "message"] gca Add and commit (ignores new files!)
git add --all gaa Update index with entire working tree
git diff gd Changes in the working tree not yet staged for the next commit
git diff --cached gdca Changes between the index and your last commit
git diff HEAD gd HEAD Changes in the working tree since your last commit
git difftool gdt Git diff with default difftool
git remote -v grv List remote repositories
git branch -vv   List branches and show tracking
git remote show <origin>   Show detailed information on <origin>
git pull --rebase gup Pull remote with rebase
git rebase -i HEAD~x grbi HEAD~x Interactively squash last x commits

Misc

SSH Homepage at ssh.com

Command Description
rsync -av[n] <src> <dst> [--exclude=.DS_Store] Archive verbose [dry run]
find . -name .DS_Store -type f [-delete] When you forget -exclude ;)
sips -Z 1024 *.jpg Resize images w max edge
ssh-keygen -t rsa Interactively generate SSH key pair
ssh-copy-id -i ~/.ssh/mykey user@host Copy publc key to host

####PostgreSQL

Offline installation, download PGDG rpm files from:

Install RPMs Set postgres user password open network using pg_hba.conf

Python

Python virtual environments

Command Description
virtualenv [-p /path/to/python] venv Create virtual environment venv [using specified Python interpreter]
source venv/bin/activate Use the venv virtual environment
deactivate Stop using the current virtual environment
pip list [--outdated] List [outdated] packages
pip install <package> [--upgrade] Install [/upgrade] <package>

Tmux

Terminal Multiplexer manual

Command Description
tmux ls List sessions
tmux a [-t <session-name>] Attach first available session
tmux kill-session -t <session-name> Kill session
tmux new [-s <session-name>] Create a new [named] session
Ctrl-b s List sessions
Ctrl-b w List Windows
Ctrl-b c New window
Ctrl-b , Name window
Ctrl-b f Find window
Ctrl-b & Kill window

Simple configuration file (~/.tmux.conf) stolen from around the web but mostly from here.

# Tmux settings

# Set XTerm key bindings
setw -g xterm-keys on

# Set colors
set-option -g default-terminal "screen-256color"

#Set UTF-8 compatibility
set-window-option -g utf8 on

# Set mouse scrolling and clicking and drag to resize
set -g mode-mouse on
set -g mouse-resize-pane on
set -g mouse-select-pane on
set -g mouse-select-window on

# Set reload key to r
bind r source-file ~/.tmux.conf

# Count sessions start at 1
set -g base-index 1

# Use vim bindings
setw -g mode-keys vi

# Remap window navigation to vim
unbind-key j
bind-key j select-pane -D 
unbind-key k
bind-key k select-pane -U
unbind-key h
bind-key h select-pane -L
unbind-key l
bind-key l select-pane -R

# Set the title bar
set -g set-titles on
set -g set-titles-string '#(whoami) :: #h :: #(curl ipecho.net/plain;echo)'

# Set status bar
set -g status-utf8 on
set -g status-bg black
set -g status-fg white
set -g status-interval 5 
set -g status-left-length 90
set -g status-right-length 60
set -g status-left "#[fg=Cyan]#(whoami)::#(hostname -s)::#(curl ipecho.net/plain;echo) "
set -g status-justify left
set -g status-right '#[fg=Cyan]#S #[fg=white]%a %d %b %R'

Vim

There are many fine vim tutorials out there, and cheatsheets so big you could wallpaper a decent sized house with them. I don’t use vim all that much, this is just some basic stuff I tend to forget.

Command Description
w [W] Start of next word [including punctuation]
e [E] End of next word [including punctuation]
b [B] Back to start of word [including punctuation]
0 Beginning of line
^ Beginning of line (non-blank)
$ End of line
Ctrl-b Page up
Ctrl-f Page down
H M L Place cursor High/Middle/Low on screen
gg First line
G Last line
i [I] Insert [at beginning of line]
a [A] Append [at end of line]
o [O] Open new line below [above]
u Undo
Ctrl-r Redo
:wq [ZZ] Save and quit
:q! [ZQ] Don’t save, just quit
/<pattern> Search for <pattern>
?<pattern> Search backward for <pattern>
n Find next
N Find previous
:%s/<old>/<new>/g[c] Replace <old> with <new> in entire file (g)[with confirmation]

I keep a very simple .vimrc

" Set colorscheme
syntax on               " enable syntax highlighting
colorscheme evening     " set pretty colors

" Enable line numbering and highlighting
set number              " show line numbers
set cursorline          " highlight current line
set showmatch           " highlight matching [{()}]

" Tab behavior
set tabstop=4           " number of visual spaces per TAB
set softtabstop=4       " number of spaces in tab when editing 
set expandtab           " tabs are spaces