Have vim inspect command history

vim_gg.sh

vim () {
    last_command=$(history | tail -n 2 | head -n 1)
    if [[ $last_command =~ 'git grep' ]] && [[ "$*" =~ :[0-9]+:$ ]]; then
        line_number=$(echo $* | awk -F: '{print $(NF-1)}')
        /usr/bin/vim +${line_number} ${*%:${line_number}:}
    else
        /usr/bin/vim $*
    fi
}