#!/bin/bash
# set grub cmdline
CMDLINE_FILE=$1
if ! grep ^GRUB_CMDLINE_LINUX= /etc/default/grub | grep -q "cat $CMDLINE_FILE"; then
    eval $(grep ^GRUB_CMDLINE_LINUX= /etc/default/grub)
    sed -i /^GRUB_CMDLINE_LINUX=/d /etc/default/grub
    for var in $GRUB_CMDLINE_LINUX; do
        if ! grep -q ^$(echo ${var} | awk -F= '{print $1}') $CMDLINE_FILE; then
            NEW_GRUB_CMDLINE_LINUX="${GRUB_CMDLINE_LINUX:+$NEW_GRUB_CMDLINE_LINUX }${var}"
        fi
    done
    echo 'GRUB_CMDLINE_LINUX="'${NEW_GRUB_CMDLINE_LINUX:+$NEW_GRUB_CMDLINE_LINUX }'$(cat '$CMDLINE_FILE' | xargs)"' >> /etc/default/grub
fi
grub2-mkconfig -o /boot/grub2/grub.cfg
grub2-mkconfig -o /etc/grub2-efi.cfg
exit
cat <<'EOF' > /etc/grub2-efi.cfg
search --no-floppy --set prefix --file /boot/grub2/grub.cfg
set prefix=($prefix)/boot/grub2
configfile $prefix/grub.cfg
EOF