Created
March 21, 2017 05:34
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SSL証明書の有効期限までの残り日数を取得する
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| #!/bin/sh | |
| ssl_expiration_date=`openssl s_client -connect $1:443 < /dev/null 2> /dev/null | openssl x509 -text | grep Not | grep -v Before | awk '/Not After : / {print $4, $5, $6, $7, $8}'` | |
| expiration_second=`date +%s --date="$ssl_expiration_date"` | |
| now_second=`date +%s` | |
| ((diff_second=expiration_second-now_second)) | |
| expiration_remaining_day=$((diff_second/86400)) | |
| echo $expiration_remaining_day |
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Usage: ./get-ssl-expiration-date.sh hoge.exsample