yfix/yf

#!/bin/bash

function require_packages {
    packages="$1"
    if [ -z "$packages" ]; then
        echo "No packages given to ";
    fi
    to_install=""
    installed_packages="@"$(dpkg-query -W -f "\${status} \${package}\n" $packages 2>/dev/null | grep "install ok installed" | cut -c 22- | tr "\n" "@")"@"
    for package in $packages; do
        exists=$(echo $installed_packages | fgrep "@$package@")
        if [ -z "$exists" ]; then
            to_install="$to_install $package"
        else
            echo "package exists: $package"
        fi
    done
    if [ ! -z "$to_install" ]; then
        (echo "y" | apt-get install -q -m -y $to_install)
    fi
    if [ ! $? -eq 0 ]; then
        echo "Catched error, trying one by one"
        installed_packages="@"$(dpkg-query -W -f "\${status} \${package}\n" $packages 2>/dev/null | grep "install ok installed" | cut -c 22- | tr "\n" "@")"@"
        for package in $to_install; do
            exists=$(echo $installed_packages | fgrep "@$package@")
            if [ -z "$exists" ]; then
                (echo "y" | apt-get install -q -m -y $package)
            fi
        done
    fi
}

# Example usage of programs that were installed automatically by require_packages:
# apt-get remove -y aria2 pbzip2 apt-fast
# require_packages "aria2 pbzip2 apt-fast"
# aria2c -v
# echo "#####"
# pbzip2 -h