The sys command line alias facilitates the use and discovery of system layer commands. Typing this command without arguments provides syntax help, and a list of supported system layer commands. The following is an example:

[admin@server-dev ~]$ sys

Execute system layer commands.

    -h, --help
        Command syntax (this help)
 
    -hh, --hhelp
        Verbose help

Available commands:
 
    secconfig       [Manage security settings]
    versions        [Query version information]
    volmgt          [Manage disk volume sizes]
    smcvemgt        [Manage Spectre/Meltdown patches]
    extension       [Manage system layer extensions]
  passwdrules     [Manage password rules]

  Command invocation syntax:
     sys <command> <arguments>

  Command syntax
    sys <command> -h

[admin@server-dev ~]$

Verbose help information

-hh is used for verbose help information, which provides a brief description of each available system layer command. The following is an example:

[admin@server-dev ~]$ sys -hh

The "sys" command line alias facilitates access to the following commands
related to the system layer of UCApp appliances. To obtain help with
each of these commands, use the "-h" (or "--help") argument for help
with command line syntax, and "-hh" (or "--hhelp") for verbose help.
 
secconfig
    Manages security-related settings.
 
versions
    Queries the version information of various elements of the system
    layer.
 
volmgt
    Queries the sizes of existing disk volumes and extends their sizes.

smcvemgt
    Manages the enablement status of Linux kernel patches for the
    Spectre and Meltdown vulnerabilities.

extension
     Manages the extensions for the system layer. Supported extensions
     are currently limited to the enablement of JAR files in the
     JRE library's extensions directory to support newer application
    loads.

[admin@server-dev ~]$

Any arguments provided after the name of the system layer command are passed through to that command.