Accidently overwrote my .bashrc file

Code:
# If not running interactively, don't do anything

[[ $- == *i* ]] || return





# enable bash completion in interactive shells

if ! shopt -oq posix; then

  if [ -f /usr/share/bash-completion/bash_completion ]; then

    . /usr/share/bash-completion/bash_completion

  elif [ -f /etc/bash_completion ]; then

    . /etc/bash_completion

  fi

fi





alias usage='du -sk * | sort -n | perl -ne '\''($s,$f)=split(m{\t});for (qw(K M G)) {if($s<1024) {printf("%.1f",$s);print "$_\t$f"; last};$s=$s/1024}'\'

alias ls="ls --color"





# Powerline

if [ -f /usr/share/powerline/bindings/bash/powerline.sh ]; then

    source /usr/share/powerline/bindings/bash/powerline.sh

fi





# Linux Lite Custom Terminal

LLVER=$(awk '{print}' /etc/llver)





echo -e "Welcome to $LLVER ${USER}"

echo " "

date "+%A %d %B %Y, %T"

free -m | awk 'NR==2{printf "Memory Usage: %s/%sMB (%.2f%%)\n", $3,$2,$3*100/$2 }'

df -h | awk '$NF=="/"{printf "Disk Usage: %d/%dGB (%s)\n", $3,$2,$5}'

echo "Support - https://www.freecinema2022.gq/forums/ (Right click, Open Link)"

echo " "