Once enabled, the log will take effect for any operations in future.

Example: install and enable log.

acme.sh --install    --log

If you forget to enable log when installing, you can enable log by any command. Example: enable log when issuing a cert:

acme.sh  --issue  ....   --log

The default log file is in ~/.acme.sh/acme.sh.log

And you can specify a log file path

acme.sh  --issue .....   --log  "/path/to/mylog.log"

The default log level is 2, it will output the log info same as --debug This is enough for most cases. You can also specify log level.

set log level to 1

acme.sh  --issue  .....  --log     --log-level 2