Enhanced docs

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Stephen McQuay 2018-01-12 10:18:51 -08:00
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# certexp
report certificate expiry for a collection of servers, which yields equivalent
information to:
A tool that reports certificate expiry for a collection of servers. It yields
equivalent information to:
```bash
$ echo | openssl s_client -connect $hostname:$port 2> /dev/null | openssl x509 -noout -dates | grep notAfter
```
but fetches the information for a colleciton of hosts and does it concurrently.
## example usage
```bash