Fedora Update script

updateos.sh

#!/bin/bash

# Will update as far as it will go
# echo "@reboot root /root/updateos.sh" >>/etc/crontab

# uname -m for arch


if [ "x${1}" == "xSCRIPT" ]; then
    SHELL="/bin/bash"
    /usr/bin/script /root/updateos-$(date --iso-8601=seconds).log ${0} SCRIPT
    exit 0
fi

dnf list installed jq &>/dev/null
if [ "$?" -ne "0" ]; then
    dnf install -y jq
fi

CURRENT_VERSION=$(
    . /etc/os-release
    if [ "${ID}" != "fedora" ]; then
        echo "ERROR";
    else
        echo "${VERSION_ID}";
    fi
)

TARGET_VERSION=$(
    curl -sq  https://fedoraproject.org/releases.json | \
    jq -r '[.[] |
        select(.variant == "Server" and .arch == "x86_64")] |
        max_by(.version | tonumber) |
        .version'
)
echo $TARGET_VERSION

UPDATE_VERSION_MAX=$((CURRENT_VERSION + 2))

if [ $TARGET_VERSION -eq $UPDATE_VERSION_MAX ]; then
    echo "At latest version"
    exit
fi

if [ $TARGET_VERSION -gt $UPDATE_VERSION_MAX ]; then
    UPGRADE_VERSION=$UPDATE_VERSION_MAX
else
    if [ $TARGET_VERSION -lt $CURRENT_VERSION ]; then
        UPGRADE_VERSION=$CURRENT_VERSION
    else
        UPGRADE_VERSION=$TARGET_VERSION
    fi
fi

# dnf install 'dnf-command(system-upgrade)'

dnf -y upgrade --refresh && \
    dnf -y system-upgrade download --releasever=${UPGRADE_VERSION} && \
    dnf -y system-upgrade reboot