simon824 commented on pull request #1053:
URL:
https://github.com/apache/incubator-seatunnel/pull/1053#issuecomment-1014994002
> I think this way of judging is redundant，you can make a unified judgment
on all parameters @simon824 The following judgment method is good： `if [ -z
${MASTER} ] || [ -z ${DEPLOY_MODE} ] || [ -z ${CONFIG_FILE} ]; then echo
"Error: The following options are required: [-e | --deploy-mode], [-m |
--master], [-c | --config]" usage exit -1 fi`
Thanks for your reply, `shift 2` will cause infinite loop in these scripts,
so we need to judge values before `shift 2`.
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