acme.sh
A pure Unix shell script implementing ACME client protocol
A pure Unix shell script implementing ACME client protocol. An ACME protocol client written purely in Shell (Unix shell) language. Full ACME protocol implementation. Support ECDSA certs. Support SAN and wildcard certs. Simple, powerful and very easy to use. You only need 3 minutes to learn it. Bash, dash and sh compatible. Purely written in Shell with no dependencies on python. Just one script to issue, renew and install your certificates automatically. Does not require root/sudoer access...