bash

gistfile1.txt

#############
#   Colors  #
#############
# Set prompt: " username@hostname/directory/tree $ " (with colors)
export PS1="  \[\e[32;1m\]\u\[\e[0m\]\[\e[32m\]@\h\[\e[36m\]\w \[\e[33m\]\$ \[\e[0m\]"

#########
# AlIAS #
#########
alias home='cd ~'
alias l='ls -lah'
alias h='history'
alias hg='history|grep'
alias c='clear'
alias ..='cd ..'
alias ...='cd ../..'

# Create and change to directory
function mkcd {
    if [ $# -ne 1 ]; then
        echo "usage: mkcd directory_name"
    elif [ -d "${1}" ]; then
        echo "(directory already existed)"
        cd "$1"
    elif [ -e "${1}" ]; then
        echo "file exists"
    else
        mkdir "${1}" && cd "${1}"
    fi
}

# Remove empty working directory
function rmwd {
    if (shopt -s nullglob dotglob; f=(*); ((! ${#f[@]}))); then
        # directory is empty
        rmdir `"pwd"`
        cd ..
    else
        echo "not empty"
    fi
}