linux - find all certificate files in any centos directory using the expiry date filter

Question

Please, I need to find all certificate files in any directory in the centos box.

I tried the "find" with "exec" command and grep "not after". This display only the expiry dates of the certificates but I need to find the actual files too:

find /etc/  -type f -exec openssl x509 -in {} -noout -text ; |
grep -i  "not after"

what command could list the cert files with the content of their expiry dates too?

Answer 1

You may use this find + awk:

while IFS= read -rd '' cert; do
   printf '%s :: ' "$cert"
   openssl x509 -in "$cert" -noout -text |
   awk -F ' *Not After : ' 'NF == 2 {print $2; exit}'
done < <(find /etc -type f -print0)