learning shell check host dependent pkg

【 Purpose 】

Shell script check host dependent pkg

【 Eevironment 】

Ubuntu 16.04 bash env

【 Procdeure 】

Source code:

    dependent_pkg="gitk"

    for pkg in $dependent_pkg; do

    if ! dpkg-query -l $pkg | grep -q ii; then

        echo installing $pkg ..

        sudo apt-get -y install $pkg

    fi

    done