linux only show dir on command line, add handy aliases

.bashrc

# Change PS1 to only display \w full path
# Comment this to go back to default
PS1='\w\$ '

# Show date before any prompt
# PROMPT_COMMAND="date +%k:%m:%S"

# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then
    test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
    alias ls='ls --color=auto'
    #alias dir='dir --color=auto'
    #alias vdir='vdir --color=auto'

    alias grep='grep --color=auto'
    alias fgrep='fgrep --color=auto'
    alias egrep='egrep --color=auto'
fi

# some more ls aliases
alias ll='ls -alF'
alias la='ls -A'
alias l='ls -CF'
# Add alias for rm remove file to show warning message
alias rm='rm -i'
# show $PATH nicely(pretty path)
alias ppath='echo $PATH | tr \: \\n'
# from cs50
alias lf="ls -l | grep -v '^d'"
alias ldir="ls -l | grep '^d'"
# gcc with warnings
alias mygcc='gcc -Wall -pedantic -std=c99'