Hi the SkyWalking community, I'm writing to let you know that since our CLI project starts not long ago, now we already have a workable command `swctl service ls` [1], and I'd like to invite you to try this CLI and give feedback if possible, and welcome contributors to contribute more commands, thanks
[1] http://github.com/apache/skywalking-cli/pull/6 -- GitHub @kezhenxu94 Apache SkyWalking, Apache Dubbo
