我通过ssh合并json文件时遇到问题。我总是得到错误

jq: invalid JSON text passed to --argjson
Use jq --help for help with command-line options,
or see the jq manpage, or online docs  at https://stedolan.github.io/jq

字符串
即使我传递一个vlid json文本。

# check if the content of the input file is valid JSONn  
if ! echo "$content" | jq empty > /dev/null 2>&1; then                                               
    echo "ERROR: The content of the input file is not valid JSON."
    exit 1                                                                                        
fi                                                                
                                                 
# extract the text inside the curly brackets from the JSON content                  
extracted_content=$(echo "$content" | jq .)    
  
# check if the extracted content is valid JSON                       
if ! echo "$extracted_content" | jq empty > /dev/null 2>&1; then              
    echo "ERROR: The content of the input file contains no or invalid curly braces."  
    exit 1                                                  
fi                                                                

while read ip 
do                                                                                                                         
        echo "Doing changes to machine $ip"
                                                                            
        # --- Connect to machine ---        

                 
        cd /home/root/.ssh                                                                 
        ssh -tt -o StrictHostKeyChecking=no -i sac_key root@${ip} -p22222 <<- _connect_      

        # --- Append the extracted content to the target JSON ---                       
        if ! jq --argjson data "$extracted_content" '. += $data' "$TO" > "$TO.tmp"; then
           echo "ERROR: Error appending content to destination JSON." 
           exit 1                                       
        fi    

        # --- Rename the temporary file to the original target ---
        mv "$TO.tmp" "$TO"     
_connect_                   
done < $1

型
所以我试着改变路线

if ! jq --argjson data "$extracted_content" '. += $data' "$TO" > "$TO.tmp"; then

型
比如只执行$extracted_content或$（cat $extracted_content）。或者用echo显示$extracted_content的内容

extracted conent before ssh =
{"ntpServers":"10.9.221.1"}

型
也使用json验证器（https://jsonformatter.net/json-validator/）来检查文件是否有效。