SELinux config file update script written in Bash

seupdateconfig.bash

#!/usr/bin/env bash

disabled() {
        sed -i 's/^SELINUX=.*/SELINUX=disabled/' config && echo SUCCESS || echo FAILURE
}

permissive() {
        sed -i 's/^SELINUX=.*/SELINUX=permissive/' config && echo SUCCESS || echo FAILURE
}

enforcing() {
        sed -i 's/^SELINUX=.*/SELINUX=enforcing/' config && echo SUCCESS || echo FAILURE
}

current() {
        grep -E '^SELINUX=' config | awk -F "=" '{print $2}'
}

printconfig() {
        cat config
}

case "$1" in
    --disabled)
        disabled
        ;;
    --permissive)
        permissive
        ;;
    --enforcing)
        enforcing
        ;;
    --current)
        current
        ;;
    --print)
        printconfig
        ;;
    *)
        echo "Usage: $(readlink -f $0) {--current|--print|--disabled|--permissive|--enforcing}"
        exit 1
        ;;
esac
exit $?