- 1 year ago
How do I merge thousands of json files with jq?
To merge thousands of JSON files using jq
, you can utilize the jq
command-line tool in combination with shell scripting. Here's an example approach:
Open your terminal or command prompt.
Navigate to the directory where your JSON files are located.
Create a new file, let's call it
merged.json
, which will hold the merged JSON data. You can create an empty file using the following command:shelltouch merged.json
Use a loop to iterate over each JSON file and append its content to the
merged.json
file. Depending on your specific file naming pattern, you can adjust the loop accordingly. Here's an example using the*.json
wildcard to match all JSON files in the directory:shellfor file in *.json; do
cat "$file" | jq -c '.' >> merged.json
done
In the loop, each JSON file is read using
cat
, piped tojq -c '.'
to ensure each line contains a single JSON object, and then appended to themerged.json
file using the>>
redirection operator.After the loop completes, the
merged.json
file will contain the merged JSON data from all the input files.
Please note that merging thousands of JSON files can generate a large output file, so make sure you have enough disk space available. Additionally, this method assumes that each JSON file contains a valid JSON object per line. If your files have a different structure, you may need to modify the jq
command accordingly.
By following these steps, you can merge thousands of JSON files into a single merged.json
file using jq
and shell scripting.