Bash Function to extract any archive. Add this to your .bashrc / .zshrc

aliases.sh

ex() {
    if [ -z "$1" ] ; then
        echo >&2 'File not specified'
        return 1
    fi

    if [ ! -f "$1" ] ; then
        echo >&2 "'$1' is not a valid file"
        return 1
    fi

    case $1 in
        *.tar.bz2)   tar xjf $1   ;;
        *.tar.gz)    tar xzf $1   ;;
        *.bz2)       bunzip2 $1   ;;
        *.rar)       unrar x $1   ;;
        *.gz)        gunzip $1    ;;
        *.tar)       tar xf $1    ;;
        *.tbz2)      tar xjf $1   ;;
        *.tgz)       tar xzf $1   ;;
        *.zip)       unzip $1     ;;
        *.Z)         uncompress $1;;
        *.7z)        7z x $1      ;;
        *)           echo "'$1' cannot be extracted via ex()" ;;
    esac
}