release_ge shell

release_ge.sh

#!/bin/sh

distro-info --all | mawk "
    /^$1\$/ { l = NR };
    /^$2\$/ { r = NR };

    END {
        if (!l) { 
            print \"Unknown release $1\" > \"/dev/stderr\";
            exit 1;
        }
        if (!r) { 
            print \"Unknown release $2\" > \"/dev/stderr\";
            exit 1;
        }
        if (l >= r) {
            exit 0
        } else {
            exit 1
        }
    }"