cd
Create .bash_profile if not exist yet
touch .bash_profile
The .bash_profile should contains the following:
if [ -f ~/.bashrc ]; then source ~/.bashrc fi
Append into the file .bashrc the following:
PS1="\u@\h [\$PWD]# " LS_OPTIONS='--color=tty -F -a -b -T 0'; export LS_OPTIONS; alias ls='/bin/ls $LS_OPTIONS'; alias dir='/bin/ls $LS_OPTIONS --format=vertical'; alias vdir='/bin/ls $LS_OPTIONS --format=long'; alias d=dir; alias v=vdir; eval `dircolors -b`
Run next to get this updated:
source .bashrc