查找一堆gz文件是否含有某些字符串

find . -name "aaaa*.jsonl.gz" | xargs -P 4 -I {} sh -c 'echo "Searching {}..."; zgrep "xxx" "{}"'

// output
Searching ./aaaa_00.jsonl.gz...
Searching ./aaaa_01.jsonl.gz...
Searching ./aaaa_02.jsonl.gz...
Searching ./aaaa_03.jsonl.gz...
{"fullName":"xxx","firstName":"aaa"...