tail color

tail -f log.log | sed -e 's/\\n/\n/g' \
    -e 's/\(.*INFO.*\)/\x1B[32m\1\x1B[39m/' \
    -e 's/\(.*WARN.*\)/\x1B[33m\1\x1B[39m/'\
    -e 's/\(.*ERROR.*\)/\x1B[31m\1\x1B[39m/'\