실행예시 Ubuntu root@Test# grep . /etc/*-release /etc/lsb-release:DISTRIB_ID=Ubuntu /etc/lsb-release:DISTRIB_RELEASE=18.04 /etc/lsb-release:DISTRIB_CODENAME=bionic /etc/lsb-release:DISTRIB_DESCRIPTION="Ubuntu 18.04.2 LTS" /etc/os-release:NAME="Ubuntu" /etc/os-release:VERSION="18.04.2 LTS (Bionic Beaver)" /etc/os-release:ID=ubuntu /etc/os-release:ID_LIKE=debian /etc/os-release:PRETTY_NAME="Ubuntu 18...