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+# tlmgr conf
+
+> Manage the TeX Live configuration.
+> More information: <https://www.tug.org/texlive/tlmgr.html>.
+
+- Show the current TeX Live configuration:
+
+`tlmgr conf`
+
+- Show the current `texmf`, `tlmgr`, or `updmap` configuration:
+
+`tlmgr conf {{texmf|tlmgr|updmap}}`
+
+- Show only a specific configuration option:
+
+`tlmgr conf {{texmf|tlmgr|updmap}} {{configuration_key}}`
+
+- Set a specific configuration option:
+
+`tlmgr conf {{texmf|tlmgr|updmap}} {{configuration_key}} {{value}}`
+
+- Delete a specific configuration option:
+
+`tlmgr conf {{texmf|tlmgr|updmap}} --delete {{configuration_key}}`
+
+- Disable the execution of system calls via `\write18`:
+
+`tlmgr conf texmf {{shell_escape}} {{0}}`
+
+- Show all additional `texmf` trees:
+
+`tlmgr conf auxtrees show`