check ssl cert expire.

sslcert-check

#!/bin/sh

if [ $# == 0 ]; then
	echo "usage: $1 <ssl cert file>"
	exit 1
fi
FILENAME=$1
if [ ! -f "$FILENAME" ]; then
	echo "ERROR: <ssl cert file> not exists. $FILENAME"
	exit 1
fi

EXPIRE_EXP="$(openssl x509 -noout -text -in $FILENAME | grep 'Not After' | sed -e 's/[^:]\+: //')"
EXPIRE=$(date --date "$EXPIRE_EXP")
THRESHOLD=$(date -d "$EXPIRE_EXP -30 days" +"%s")
TODAY=$(date +"%s")
if [ $THRESHOLD -lt $TODAY ]; then
	echo "SSL CERT FILE (WILL) EXPIRE!!!!! EXPIRE: $EXPIRE"
	echo "$FILENAME"
	exit 1
fi