Git, Rails and VIM Cheat Sheet

Cheat Sheet

GIT COMMANDS
First Commit
$ git init
$ git add .
$ git commit -m "Initial commit"
$ git remote add origin [git address]
$ git push -u origin master

Branches
$ git checkout -b [name of branch]
$ git push origin branch-name 
$ git checkout master
$ git merge [name of branch]

Delete Branch
$ git branch -d <branchName>
$ git push origin --delete <branchName>

ReadMe
$ git mv README.rdoc README.md
$ git commit -a -m "Improve the README"

Regular Commands
$ git status
$ git add .
$ git commit -m "Finish demo app"
$ git push

Clear Git Cache
$ git rm -r --cached .
$ git add .
$ git commit -m ".gitignore is now working"
$ git reset --hard HEAD

Tags
git tag
git show
git tag -a v1.0 -m "Release 1.0"
git push --tags

HEROKU
$ heroku keys:add ~/.ssh/id_rsa.pub
$ heroku create --stack cedar
$ git push heroku master
$ heroku git:remote -a <app-name>
$ heroku run rake db:migrate
$ rake figaro:heroku

BUNDLER
gem install bundler (for each version of Ruby)
bundle update
bundle install
rbenv rehash
brew update
gem update
gem install bundler
rbenv exec gem install rails --version 5.1.0 --no-ri --no-rdoc

RAILS
rake db:reset db:migrate
rake db:drop db:create db:migrate

pg_restore -d database_name -c file_name.tar
pg_restore -d physician-portal_development -c export

rails g migration AddUserToHotlists user_id:integer:index
Rails 5:
rails g migration AddProviderToPfOrders provider:references

create_table :educations do |t| 
  t.belongs_to :profile, index: true, foreign_key: true
end

Reset database table and primary key index
ActiveRecord::Base.connection.truncate(:table_name)
ActiveRecord::Base.connection.reset_pk_sequence!('table_name')

RAILS ASSETS
rm -rf tmp/cache
rake tmp:cache:clear
rake assets:clobber
bundle exec rake assets:precompile

RAILS CREDS
EDITOR="subl --wait" bin/rails credentials:edit

DOCKER
Check logs:
docker ps
docker stop <container_ID>
docker system prune
docker attach <container>

DOKKU
Restore database
gunzip -c <db_backup.gz> | dokku postgres:import <db_name>
dokku postgres:import db_marketingapp < export
dokku plugin:update letsencrypt

PUMA SERVER:
[::1]:3000
rails s -b $(ipconfig getifaddr en0)

RUBY SERVER:
ruby -run -e httpd . -p 3000

POSTGRESQL
select pg_size_pretty(pg_database_size('db_marketingapp'));
brew postgresql-upgrade-database

SSH
pbcopy < ~/.ssh/id_rsa.pub

FAIL2BAN
fail2ban-client status | grep "Jail list:" | sed "s/ //g" | awk '{split($2,a,",");for(i in a) system("fail2ban-client status " a[i])}' | grep "Status\|IP list"

GREP
top -p `pgrep process-name | tr "\\n" "," | sed 's/,$//'`

TERMINAL COMMAND TO MOST RECENT DIRECTORY
cdf

VIM COMMANDS//:

yy - Yank line (copy)
c3w - Cut 3 words
p - Paste below cursor
P - Paste above cursor
i - Insert text before cursor
a - Append text after cursor
fN - Jump forward to first 'N'
3fN - Jump forward to third 'N'
6l - Forward 6 letters
2j - Down 2 lines
vim -N filename - Open a file with Vim
:e . - Browse a directory
:e filename - Edit a file within Vim
:syntax enable - Enable syntax highlighting
:set syntax