Passing bash variable to jq
Consider also passing in the shell variable (EMAILID) as a jq variable (here also EMAILID, for the sake of illustration):
projectID=$(jq -r --arg EMAILID "$EMAILID" ' .resource[] | select(.username==$EMAILID) | .id' file.json)Postscript
For the record, another possibility would be to use jq's env function for accessing environment variables. For example, consider this sequence of bash commands:
EMAILID=foo@bar.com # not exportedEMAILID="$EMAILID" jq -n 'env.EMAILID'The output is a JSON string:
"foo@bar.com"
I resolved this issue by escaping the inner double quotes
projectID=$(cat file.json | jq -r ".resource[] | select(.username==\"$EMAILID\") | .id")
Posting it here as it might help others. In string it might be necessary to pass the quotes to jq. To do the following with jq:
.items[] | select(.name=="string")in bash you could do
EMAILID=$1projectID=$(cat file.json | jq -r '.resource[] | select(.username=='\"$EMAILID\"') | .id')essentially escaping the quotes and passing it on to jq