Try 'sh /script/acme.sh-installer' and then try with 'acme.sh --help'.
Just tried:
[root@ali /]# sh /script/acme.sh-installer
[root@ali /]# acme.sh --help
https://github.com/Neilpang/acme.shv2.2.4
Usage: acme.sh command ...[parameters]....
Commands:
--help, -h Show this help message.
--version, -v Show version info.
--install Install acme.sh to your system.
--uninstall Uninstall acme.sh, and uninstall the cron job.
--issue Issue a cert.
--installcert Install the issued cert to apache/nginx or any other server.
--renew, -r Renew a cert.
--renewAll Renew all the certs
--revoke Revoke a cert.
--installcronjob Install the cron job to renew certs, you don't need to call t his. The 'install' command can automatically install the cron job.
--uninstallcronjob Uninstall the cron job. The 'uninstall' command can do this a utomatically.
--cron Run cron job to renew all the certs.
--toPkcs Export the certificate and key to a pfx file.
--createAccountKey, -cak Create an account private key, professional use.
--createDomainKey, -cdk Create an domain private key, professional use.
--createCSR, -ccsr Create CSR , professional use.
Parameters:
--domain, -d domain.tld Specifies a domain, used to issue, renew or revoke e tc.
--force, -f Used to force to install or force to renew a cert im mediately.
--staging, --test Use staging server, just for test.
--debug Output debug info.
--webroot, -w /path/to/webroot Specifies the web root folder for web root mode.
--standalone Use standalone mode.
--apache Use apache mode.
--dns [dns_cf|dns_dp|dns_cx|/path/to/api/file] Use dns mode or dns api.
--keylength, -k [2048] Specifies the domain key length: 2048, 3072, 4096, 8 192 or ec-256, ec-384.
--accountkeylength, -ak [2048] Specifies the account key length.
These parameters are to install the cert to nginx/apache or anyother server after issu e/renew a cert:
--certpath /path/to/real/cert/file After issue/renew, the cert will be copied to this path.
--keypath /path/to/real/key/file After issue/renew, the key will be copied to this pa th.
--capath /path/to/real/ca/file After issue/renew, the intermediate cert will be cop ied to this path.
--fullchainpath /path/to/fullchain/file After issue/renew, the fullchain cert will be copied to this path.
--reloadcmd "service nginx reload" After issue/renew, it's used to reload the server.
--accountconf Specifies a customized account config file.
--home Specifies the home dir for acme.sh .
--certhome Specifies the home dir to save all the certs.
--useragent Specifies the user agent string. it will be saved fo r future use too.
--accountemail Specifies the account email for registering, Only va lid for the '--install' command.
--accountkey Specifies the account key path, Only valid for the ' --install' command.
--days Specifies the days to renew the cert when using '--i ssue' command. The max value is 80 days.