linux - Awk:- 如何处理 elb-describe-lbs 的文本以仅了解可用区

Question

elb-descibe-lbs 的典型长 View 输出如下:-

 Prompt:- elb-describe-lbs --region xxxxx  --headers  --lbs xxxxxx  --show-    long view
    LOAD_BALANCER,NAME,DNS_NAME,CANONICAL_HOSTED_ZONE_NAME,CANONICAL_HOSTED_ZONE_NAME_ID,HEALTH_CH    ECK,AVAILABILITY_ZONES,SUBNETS,VPC_ID,INSTANCE_ID,LISTENER_DESCRIPTIONS,BACKEND_SERVER_DESCRIP    TIONS,SOURCE_SECURITY_GROUP,SECURITY_GROUPS,CREATED_TIME,SCHEME
LOAD_BALANCER,xxxxxx,xxxxx.xxxxxx.elb.amazonaws.com,xxx-    xxxxx-xxxx-xxxxxx.xx-xxxx-x.elb.amazonaws.com,xxxxxxx," {interval=xx,target=HTTP:xx/index.html,timeout=5,healthy-threshold=xx,unhealthy-threshold=xx}","eu-west-1b, eu-west-1a",(nil),(nil),"xxxxxx","

我只想获取可用区信息，所以我将 awk 用作:-

elb-describe-lbs --region xxxxx  --headers  --lbs xxxxx  --show-long view |  awk -F,  'NR {print $7}'

输出为:-

AVAILABILITY_ZONES
target=HTTP:xx/index.html

不过，我想在其标题下方获取可用区信息，但由于分隔符为“逗号”，它在 awk 的 feild $11 中出现。

例如:-

elb-describe-lbs --region eu-west-1  --headers  --lbs scc-emeaprod-tw  --show-long view |  awk -F,  'NR {print $7,$11,$12}'

输出是

AVAILABILITY_ZONES LISTENER_DESCRIPTIONS BACKEND_SERVER_DESCRIPTIONS
target=HTTP:xx/index.html "eu-west-1b  eu-west-1a"

如何在此处操作第 1 列和第 2 列的文本，以便在其标题下方获得可用区

.

Answer 1

我会迁移旧的 CLI 并尝试新的 AWS CLI ( http://aws.amazon.com/cli/ )

aws elb describe-load-balancers --load-balancer-names awseb-e-i-AWSEBLoa-12*****0U --region us-east-1 --query "LoadBalancerDescriptions[].AvailabilityZones []"--输出文本