tlmgr-conf
Manage the TeX Live configuration. tldr-pages
On several platforms
Several platforms
Show the current TeX Live configuration
tlmgr confIdentifyShow the current texmf, tlmgr, or updmap configuration
tlmgr conf texmfIdentifyShow only a specific configuration option
tlmgr conf texmf configuration_keyIdentifySet a specific configuration option
tlmgr conf texmf configuration_key valueIdentifyDelete a specific configuration option
tlmgr conf texmf --delete configuration_keyIdentifyDisable the execution of system calls via \write18
tlmgr conf texmf shell_escape 0IdentifyShow all additional texmf trees
tlmgr conf auxtrees showIdentify