Unable to use jq command

1. When creating vpc in cli, the jq command was used and the vpcid output was successful.

This is not a value setting for the variable vpcid, but simply the string vpcid= followed by the command execution results below awsec2.

Use the jq command to create the vpc in 1.cli, and immediately after the vpcid output without any problems

 echo$vpcid

3.echo$vpcid should print the defined vpcid, but it should be the same as the empty .

If you divide the substitution into variables and echo as follows, you will get the desired result.

vpcid=$(awsec2 and below...)
echo$vpcid