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luc-tielen/check-cert-expiration.sh

Created February 9, 2026 08:26
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Certificate expiration script
Raw
check-cert-expiration.sh
#!/bin/bash
if [ "$#" -ne 1 ]; then
echo "Usage: $0 <domain>" >&2
exit 1
fi
DOMAIN="$1"
echo \
| openssl s_client -servername "${DOMAIN}" -connect "${DOMAIN}":443 2> /dev/null \
| openssl x509 -noout -dates
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