package_manager=pkg
upgrade() {
sudo "$package_manager" upgrade -y
}
install() {
(($#)) || return 0
sudo "$package_manager" install -y "$@"
packages=(
pciutils
jq
gdb
fio
p5-extutils-pkgconfig
libtool
flex
bison
gdisk
socat
openssl
sshpass
wget
llvm-devel
)