amitk

brew tap-new $USER/<package-name>
brew extract --version=<version-no> $USER/<package-name>
brew search /<package-name>/
brew install <path to local formula>

amitk

# Delete all containers
docker rm -vf $(docker ps -aq)

# Delete all images
docker rmi -f $(docker images -aq)

amitk

The purpose of this document is to record an etiquette guide for all pull requests in the any repository. Like all etiquette, it is designed to make life easier for everyone, and if a guideline ever becomes restrictive, we should reevaluate it.

This can generally be applied to other repos managed by Team 105.

# Contents

1. [Size](#size)
2. [Sequential PRs](#sequential-prs)
3. [Labels](#labels)
4. [Branch Names](#branch-names)

amitk

# Add them to ~/.bash_profile
# reload bash profile in terminal using $. ~/.bash_profile

# git alias
alias gs="git status"
alias gpush="git push"
alias gpull="git pull"
alias gs="git status"
alias ga="git add"
alias gstash="git stash"

amitk

# It will delete all the files with there names matching the regex at once.
ls | grep <regex> | xargs rm

# eg.
# If we have files in our folder as "file.txt", "example.php", "new.html", "file_one.rb"
# For deleting files with "file" in their names just execute
# ls | grep file | xargs rm

amitk

# for linux and AWS systems enter below two commands one by one

sudo -i -u postgres
psql

# for mac
psql postgres

amitk

# PostgreSQL. Versions 9.3 and up are supported.
#
# Install the pg driver:
#   gem install pg
# On macOS with Homebrew:
#   gem install pg -- --with-pg-config=/usr/local/bin/pg_config
# On macOS with MacPorts:
#   gem install pg -- --with-pg-config=/opt/local/lib/postgresql84/bin/pg_config
# On Windows:
#   gem install pg

amitk

# in you home direactory in the bash profile to display branch name in terminal add parsing script

parse_git_branch() {
  git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
}

export PS1="\u@\h \W\[\033[32m\]\$(parse_git_branch)\[\033[00m\] $ "

amitk

# Uninstall Docker
sudo apt-get remove docker docker-engine docker-ce docker.io

# Update the apt package index
sudo apt-get update

# Allow apt to use a repository over HTTPS
sudo apt-get install \
    apt-transport-https \
    ca-certificates \

amitk

-- 1 is treated as prime as per this function.

create function is_prime(num integer) returns boolean as $$
begin -- begin block;
  for i in 2..(num/2) loop 
    if num % i = 0 then 
      return false; -- return false if it's get divided by any number smaller than half of it or half itself.
    end if;
  end loop;
  return true;