• --help Show help
• --version Show version number
• --id function id
• --secret function secret
• --init init new function (id and secret)
• -f, --zip upload a function package (.zip)
• -v, --verbose verbose level 0,1,2
• --log function log
• --about about

Note: The --id and --secret options are required. you can initialize new function using the --init option. also you can pass these two options as an env variables SFUNCTION_ID and SFUNCTION_SECRET.