Handy for preping whatever tools your script needs.

ensure_tooling.sh

# on a debian system
# expects $1 as "<binary>:<package> <binary>:<package>"
# example "qemu-img:qemu-utils nslookup:dnsutils"
# if you are not sure which package has your binary
# use apt-file search <binary name>
# we don't handle error here. so make sure you are
# using the correct binary and package names in design time
ensure_tooling(){
    local req_tools=($1)
    for tool in "${req_tools[@]}"; do
        local package_name="${tool#*:}"
        local binary_name="${tool%:*}"
        if ! which ${binary_name} >> /dev/null 2>&1 ; then
            echo "${binary_name} is not found, installing ${package_name}"
            sudo apt install -y "${package_name}" >> /dev/null 2>&1
            echo "${package_name} installed"
        fi
    done
}